ZeroWater ExtremeLife Faucet Mount
- Faucet
- Point of use
- City water
- Complete system
- Listed
$37.84as of 2026-09-04
Secondary sourceVerified 2026-09-04Retailer listing
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Our verdict on the ZeroWater ExtremeLife Faucet Mount
The ZeroWater ExtremeLife faucet mount is WQA-certified to reduce PFOA/PFOS, chlorine, Class I particulates and microplastics for 400 gallons or six months per cartridge, and sold for $37.84 at Home Depot on 2026-09-04. Its WQA listing carries no lead-reduction claim, and the manual states it was not designed to remove 100% of total dissolved solids, so it is not a faucet-mounted version of ZeroWater's 000 TDS pitchers.[1][2][3][4][5]
Best for
- Renters and anyone who cannot alter plumbing - it hand-tightens onto a standard faucet and the manual's install sequence needs no tools
- Households on municipal water whose concerns are chlorine taste and odour, Class I particulates and PFOA/PFOS, all of which WQA lists for this model
- Buyers who want a long service interval - 400 gallons or 6 months per ZRFM-001 cartridge, against the 100-gallon rating the brand cites for competing faucet mounts
- Kitchens with a standard threaded spout, internal or external, since the adapters and washer ship in the box
Not for
- Kitchens with a pull-out, pull-down or hand-held faucet - the manual states it will not work on them
- Anyone buying it to reach 000 TDS like ZeroWater's pour-through pitchers - the manual states it was not designed to remove 100% of total dissolved solids
- Buyers who need certified lead reduction - WQA's listing for this model carries no lead-reduction claim, and its NSF/ANSI 372 listing covers the lead content of the system's own materials rather than lead in the treated water
- Supplies outside the manual's 30-100 psi and 40-100 degrees F operating window, and any hot-water tap - the manual warns that filtering water above 100 degrees F will damage the filter
- Water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system
Secondary sourceVerified 2026-09-04Manufacturer datasheetWQA listingRetailer listingBrand official
Certification check: ZeroWater ExtremeLife Faucet Mount
Listed by WQA under NSF/ANSI 372, NSF/ANSI 401, NSF/ANSI 42, and NSF/ANSI 53, checked in the certifier directories as of 2026-09-04.
- WQA
- NSF/ANSI 372NSF/ANSI 401NSF/ANSI 42NSF/ANSI 53
IAPMO R&T and WQA certify products against the same NSF/ANSI standards as NSF, so a listing from either one is an equivalent third-party certification, not a lesser one.
| Directory | Result | Listing |
|---|---|---|
| NSF | No listing found (checked 2026-09-04) | View listing |
| IAPMO R&T | No listing found (checked 2026-09-04) | View listing |
| WQA | Listing found (checked 2026-09-04) | View listing |
Claimed vs. certified: ZeroWater ExtremeLife Faucet Mount
| Contaminant | Status | Third-party listing | What the brand says |
|---|---|---|---|
| Chlorine | Marketed only | No entry |
|
| Lead | Marketed only | No entry |
|
| Particulates Class I | Marketed only | No entry |
|
| PFOA / PFOS | Marketed only | No entry |
|
| Total dissolved solids | Marketed only | No entry |
|
| Aesthetic Chlorine | Certified only |
| No entry |
| Lead content of the system's own wetted materials (not lead reduction from water) | Certified only |
| No entry |
| Microplastics | Certified only |
| No entry |
| Nominal Particulate Class I | Certified only |
| No entry |
| Perfluorooctane Sulfonate (PFOS) | Certified only |
| No entry |
| Perfluorooctanoic Acid (PFOA) | Certified only |
| No entry |
| Taste and Odor | Certified only |
| No entry |
What the ZeroWater ExtremeLife Faucet Mount does not do
It does not produce the 000 TDS result ZeroWater's pour-through pitchers are sold on. The manual states the product 'was NOT designed to remove 100% of Total Dissolved Solids', and the brand repeats that the filter technology 'was not made to remove 100% of the total dissolved solids from your water'. The ZeroWater ExtremeLife Faucet Mount's recorded operating limits are Supply pressure at least 30 psi and up to 100 psi, Water temperature at least 40 F and up to 100 F, Rated service life per ZRFM-001 cartridge up to 400 gallons, verified 2026-09-04.
It does not produce the 000 TDS result ZeroWater's pour-through pitchers are sold on. The manual states the product 'was NOT designed to remove 100% of Total Dissolved Solids', and the brand repeats that the filter technology 'was not made to remove 100% of the total dissolved solids from your water'.[1][2]
Primary sourceVerified 2026-09-04Manufacturer datasheetBrand official
It carries no certified lead-reduction claim. None of the five WQA listings for ZFM-400CR/WH lists lead as a reduction claim; the model's NSF/ANSI 372 listing is a lead-content certification covering the lead-free composition of the system's own materials, which is a statement about the housing rather than about lead in the treated water.[1][2]
Primary sourceVerified 2026-09-04WQA listing
It does not fit pull-out, pull-down or hand-held faucets. The manual's precautions state plainly that it 'Will not work on pull-out and hand-held faucets', and the brand's launch post repeats that it 'does not fit drip-down faucets'.[1][2]
Primary sourceVerified 2026-09-04Manufacturer datasheetBrand official
It does not disinfect. The manual warns: 'Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.'[1]
Primary sourceVerified 2026-09-04Manufacturer datasheet
It cannot be used on hot water. The manual's operating warning is that filtering water above 100 degrees F (37.7 degrees C) will damage the filter, and the system's rated temperature range stops at the same figure.[1]
Primary sourceVerified 2026-09-04Manufacturer datasheet
Its certification comes from WQA alone: no listing for this model was found in the NSF or IAPMO R&T directories as of 2026-09-04. NSF's Drinking Water Treatment Units directory returned 'No Matching Products Found' for Zero Technologies, ZeroWater, ZFM-400 and ExtremeLife, and IAPMO R&T's directory returned 'No data found' for listed model ZFM-400 - Zero Technologies' two IAPMO files, W-14819 and W-14820, are 'Pour through' certificates covering the pitcher and dispenser line. This matters because retailer copy stating that this model is IAPMO certified for lead, chromium and mercury describes ZeroWater's pitcher filters rather than this system. WQA, IAPMO R&T and NSF certify to the same NSF/ANSI standards, so a WQA listing is a full certification and not a lesser one.[1][2][3]
Primary sourceVerified 2026-09-04NSF listingIAPMO listing
Operating limits
| Parameter | Limit | What it means |
|---|---|---|
| Supply pressure | at least 30 psi and up to 100 psi[1] | Manual specification; the certified 0.65 gpm service flow is measured at 60 psi. Primary sourceVerified 2026-09-04Manufacturer datasheet |
| Water temperature | at least 40 F and up to 100 F[1] | The manual warns that filtering water above the 100 F maximum will damage the filter, and that the unit must be protected from freezing because cracking causes leakage. Primary sourceVerified 2026-09-04Manufacturer datasheet |
| Rated service life per ZRFM-001 cartridge | up to 400 gallons[1][2] | Equivalently 6 months. The brand's FAQ states the 6-month figure is based on 2.2 gallons per day of use, and the manual notes cartridge life varies with usage and water conditions. Primary sourceVerified 2026-09-04WQA listingBrand official |
Do not buy it for these situations
Water pressureRated for 30-100 psi only. Below 30 psi the unit is outside its rated window and will not deliver its certified 0.65 gpm service flow; above 100 psi it is outside the manual's specification and needs a pressure-reducing valve.[1]
Primary sourceVerified 2026-09-04Manufacturer datasheet
Well waterNot for a private well that has not been disinfected or tested. The manual's warning is that the system must not be used with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after it, and the performance data sheet states the device is intended only for use with potable water. Nothing in the manufacturer's documentation rates this system for untreated well supplies.[1][2]
Primary sourceVerified 2026-09-04Manufacturer datasheet
Fit and sizing: ZeroWater ExtremeLife Faucet Mount
The ZeroWater ExtremeLife Faucet Mount is a faucet unit installed at the point of use, for city water. It is rated for 0.65 gpm of service flow, verified 2026-09-04.
| Form factor | Faucet |
|---|---|
| Installed at | Point of use (one fixture) |
| Water source | City water |
| Service flow | 0.65 gpm[1][2] Primary sourceVerified 2026-09-04WQA listingManufacturer datasheet |
| Dimensions | 3.5 in H × 3.11 in W × 5.2 in D[1] Secondary sourceVerified 2026-09-04Retailer listing |
| Operating pressure | 30–100 psi[1] Primary sourceVerified 2026-09-04Manufacturer datasheet |
| Operating temperature | 40–100 F[1] Primary sourceVerified 2026-09-04Manufacturer datasheet |
| Needs electricity | No[1] Primary sourceVerified 2026-09-04Manufacturer datasheet |
| Needs a drain | No[1] Primary sourceVerified 2026-09-04Manufacturer datasheet |
What the ZeroWater ExtremeLife Faucet Mount really costs
The ZeroWater ExtremeLife Faucet Mount costs $37.84 as of 2026-09-04. Over ten years, including installation and replacement elements, the recorded total is $658.24.
Replacement schedule
| Element | Replace | Cost per year |
|---|---|---|
| ZRFM-001 | every 6 months, or every 400 gallons | $62.04 |
Secondary sourceVerified 2026-09-04WQA listingBrand officialRetailer listing
Ten-year cost of ownership
| Purchase price (as of 2026-09-04) | $37.84 |
|---|---|
| Replacement elements, 10 × $62.04/year | $620.40 |
| Sum of the lines above (as of 2026-09-04) | $658.24 |
| Recorded ten-year total | $658.24 |
Warranty: Two-year limited warranty from Zero Technologies, LLC against defects in materials and workmanship when installed and used per the instructions. The ZRFM-001 filter cartridge and the system battery are expressly excluded, as are labour, installation, transportation and shipping. The sole remedy is replacement parts, and a dated proof of purchase is required. (2 years)[1][2]
Primary sourceVerified 2026-09-04Manufacturer datasheetBrand official
Installing the ZeroWater ExtremeLife Faucet Mount
Installing the ZeroWater ExtremeLife Faucet Mount is an easy job. DIY install, verified 2026-09-04.
Tools required
Primary sourceVerified 2026-09-04Manufacturer datasheetBrand official
Manufacturer documentation
- Install manual: https://images.thdstatic.com/catalog/pdfImages/ad/adc9a1db-9882-4626-a4a4-cab3bcf619d7.pdf (accessed 2026-09-04)
Ongoing maintenance
- Flush each new ZRFM-001 cartridge for 5 minutes before use to clear carbon fines
- Replace the ZRFM-001 cartridge when the filter-life indicator blinks red, then hold the reset button for 2 seconds until the green light flashes — every 6 months
- Replace the CR2032 coin cell behind the base plate and reset the timer; the manual gives the battery an estimated life of 1 year from activation — every 12 months
- Flush the system thoroughly, running water for 5 minutes, after any prolonged period of non-use such as a vacation
- Clean the housing with a damp cloth and mild soap only, avoiding harsh chemicals, detergents, abrasives, solvents and cleaning fluids
Primary sourceVerified 2026-09-04Manufacturer datasheet
Track record: ZeroWater ExtremeLife Faucet Mount
Home Depot shows 3.5 out of 5 from 179 reviews as of 2026-09-04; Ace Hardware shows 3.5 out of 5 from 159 reviews as of 2026-09-04; Amazon (ZFM-400CR chrome listing) shows 3.9 out of 5 from 379 reviews as of 2026-09-04.
| Source | Rating | Reviews | As of |
|---|---|---|---|
| Home Depot | 3.5 out of 5 | 179 | 2026-09-04 |
| Ace Hardware | 3.5 out of 5 | 159 | 2026-09-04 |
| Amazon (ZFM-400CR chrome listing) | 3.9 out of 5 | 379 | 2026-09-04 |
What owners praise
Buyers consistently describe the installation as easy and the taste as improved. Three of the six review terms Home Depot surfaces as filter chips on its reviews page are 'easy installation', 'easy to install' and 'great taste', five-star reviews repeat both points, and 85 of the 179 reviews are five-star.[1]
Secondary sourceVerified 2026-09-04Retailer listing
An owner in r/WaterTreatment running two of these units, one on a bathroom tap and one on the kitchen tap, reported that it works well in everyday use, while adding that they would not rely on it alone where water quality is poor.[1]
Secondary sourceVerified 2026-09-04Reddit thread
What owners complain about
The dominant complaint is that the unit does not lower total dissolved solids the way buyers expect from the ZeroWater name. Two-star reviews on Home Depot's page compare it directly with the company's pitchers, one reporting that the faucet filter reads the same TDS as the untreated tap. This is a mismatch with expectations rather than a defect: the manual states the product was not designed to remove 100% of total dissolved solids.[1][2]
Secondary sourceVerified 2026-09-04Retailer listingManufacturer datasheet
The filter-life indicator and its battery are a recurring complaint: 'indicator light' and 'battery replacement' are the first two of the six review terms Home Depot surfaces as filter chips, and a one-star review reports the light dead out of the box and still dead after a battery swap. The indicator is a timer rather than a sensor: the manual says the light turns red at 180 days, and the CR2032 cell that drives it is quoted at roughly a year and is excluded from the two-year warranty.[1][2]
Secondary sourceVerified 2026-09-04Retailer listingManufacturer datasheet
Opinion is unusually polarised for a product with a 3.5 average: at Home Depot on 2026-09-04, 85 of 179 reviews were five-star and 43 were one-star, and only 59% of reviewers recommended it.[1]
Secondary sourceVerified 2026-09-04Retailer listing
The ZeroWater ExtremeLife Faucet Mount against its family and its rivals
The ZeroWater ExtremeLife Faucet Mount has one sibling in its family: ZFM-400WH. Search demand pairs it with PUR PUR Plus Faucet Mount Filtration System, Brita Brita Elite Faucet Water Filter System, Culligan CULFMWHRF / CULFMF01 faucet mount.
Both finishes of this system, ZFM-400CR and ZFM-400WH, appear on the same five WQA listings with identical reduction claims, flow rate, capacity and replacement element, so the certification evidence on this page applies to either colour. That scope covers the OEM system and its OEM ZRFM-001 cartridge as listed; we make no certification claim for third-party cartridges sold as compatible with this system, since only such a cartridge's own dated directory listing could support one.[1][2]
Primary sourceVerified 2026-09-04WQA listing
The rest of the family
| Model | What differs |
|---|---|
| ZFM-400WH | White finish instead of high-polished chrome. Same 0.65 gpm service flow, same 400-gallon capacity and the same ZRFM-001 cartridge. |
Cross-shopped against
| Rival | Why this pair |
|---|---|
| PUR PUR Plus Faucet Mount Filtration System | Same form factor on the same retailer shelf: Home Depot files this product under its 'Faucet Water Filter Systems' category, and on 2026-09-04 that category's 'Best Seller' was the PUR Plus Faucet Mount Filtration System in chrome (Model# PFM400H) at $39.98, against this product's $37.84. |
| Brita Brita Elite Faucet Water Filter System | Co-ranks on the Amazon result set for the secondary keyword, and 'Is ZeroWater really better than Brita?' is a People Also Ask question on both captured SERPs. |
| Culligan CULFMWHRF / CULFMF01 faucet mount | Same parent company: Culligan is the 'Overall Pick' for the Amazon query 'ZeroWater faucet mount', carries the same microplastics and 97% PFOA/PFOS claim profile, and is the line that now occupies this product's shelf space after ZeroWater removed the faucet mount from its own store. |
ZeroWater ExtremeLife Faucet Mount questions, answered
Does the ZeroWater ExtremeLife faucet mount remove lead?
Verified health claim
It carries no certified lead-reduction claim. Checked on 2026-09-04, none of the five WQA listings for ZFM-400CR/WH names lead as a reduction claim; the model's NSF/ANSI 372 listing is a lead-content certification, which covers the lead-free composition of the system's own wetted materials rather than removal of lead from the water passing through it. The brand does make a lead claim separately, saying the contaminant 'is reduced up to 400 gallons which was tested by a 3rd party lab' and that its products reduce 'more than 98% of lead', but that is third-party test data the brand publishes about itself, not a certified claim, and the two should not be read as the same thing. Home Depot's product bullet stating this model is 'IAPMO certified' for lead, chromium and mercury is incorrect for this system: IAPMO R&T's directory returned 'No data found' for listed model ZFM-400 on the same date, and Zero Technologies' two IAPMO certificates cover its pour-through pitchers and dispensers.
Does the ZeroWater ExtremeLife faucet mount reduce PFAS?
Verified health claim
Yes, for the two PFAS compounds it is listed for. WQA lists ZFM-400CR and ZFM-400WH under NSF/ANSI 53 for Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA), verified in the directory on 2026-09-04. The manufacturer's performance data sheet puts the tested reduction at greater than 98.9% against an influent challenge of 1.5 ug/L, with a maximum permissible product-water concentration of 0.07 ug/L. PFOA and PFOS are two compounds within a very large PFAS family, so a listing for them is not a claim about PFAS generally, and the claim holds only to the cartridge's rated 400 gallons.
Does ZeroWater make a faucet filter?
Yes, one: the ExtremeLife Faucet Mount, sold as ZFM-400CR in chrome and ZFM-400WH in white. It is worth knowing where it stands, because ZeroWater no longer sells it directly - the brand's own product page now redirects to its catalogue, and the live catalogue and on-site search return only pitchers, dispensers and replacement filters. The product is still stocked by retailers, at $37.84 at Home Depot and $44.99 at Ace Hardware on 2026-09-04, and its WQA certification was current on the same date. Both Amazon listings for the system read 'Currently unavailable'.
Will this give me 000 TDS like a ZeroWater pitcher?
No. The manual states the product 'was NOT designed to remove 100% of Total Dissolved Solids', and the brand says the same in its launch announcement. ZeroWater's 000 TDS reputation comes from its pour-through pitchers and dispensers, which use a five-stage ion-exchange cartridge; this faucet mount is a single carbon cartridge aimed at chlorine taste and odour, Class I particulates and PFOA/PFOS. That gap is the most common source of disappointment in its reviews, with Home Depot's own summary noting buyers who found it 'does not significantly lower total dissolved solids as expected'.
How long does a ZeroWater filter typically last?
For this faucet mount, the ZRFM-001 cartridge is rated at 400 gallons or 6 months, whichever comes first, and the 6-month figure assumes 2.2 gallons of use per day. That rated capacity is recorded on the WQA listing itself, not only in the brand's marketing. The indicator light is a timer rather than a sensor: it turns red at 180 days regardless of how much water has passed through, so heavy users should track gallons rather than wait for the light. The manual also notes that cartridge life varies with usage and water conditions.
Will it fit my faucet?
It fits a standard threaded kitchen spout, and it will not fit a pull-out, pull-down or hand-held sprayer. The manual states plainly that it 'Will not work on pull-out and hand-held faucets', and the brand repeats that it 'does not fit drip-down faucets'. For a standard spout, you unscrew the aerator and then either thread the unit straight on if your faucet has external threads, or fit the supplied adapter and washer if the threads are internal. If the supplied adapters do not fit, the manual's troubleshooting step is to reuse the gasket from your aerator and, failing that, to check your faucet's thread size with a hardware supplier for the correct adapter.
What is the lawsuit against ZeroWater?
There is no recall or consumer safety action against this product: CPSC searches for ZeroWater, Zero Technologies and ZFM-400 all returned nothing on 2026-09-04, against a control search that did return results. The litigation attached to the ZeroWater name runs the other way, with ZeroWater as the plaintiff. Bloomberg Law reported on 2025-06-06 that a federal judge refused to dismiss Zero Technologies' antitrust claims against Clorox, in which ZeroWater alleges Clorox and its Brita unit manipulated certification standards for gravity-fed water filters. Those are pitcher filters, not this faucet mount.
Do faucet mount filters work?
Verified health claim
This one does what its certification says, which is a narrower promise than most faucet-mount marketing implies. WQA lists ZFM-400CR/WH for aesthetic chlorine, taste and odour, Class I particulates, microplastics and PFOA/PFOS, and the manufacturer's tested reductions are 99.1% for chlorine, 97.0% for Class I particulates and greater than 98.9% for PFOA/PFOS. What a faucet mount of this kind does not do is treat the whole house, disinfect, soften, or strip dissolved solids, and this model's certified list contains no lead reduction. Treat the certified claim list as the product's actual scope and anything outside it as unproven for this unit.
Sources and data report: ZeroWater ExtremeLife Faucet Mount
Every figure above is taken from the highest-trust source that carries it and re-derived from that source by a separate check. How we verify product data.
What we could not establish, and why
| Field | Why it is blank |
|---|---|
| identity.images | Declared for the record even though the value is an empty array rather than null: ZeroWater removed the product page from its own store, so no brand-hosted product image survives. The surviving first-party pages (the ExtremeLife FAQ and the performance-certification page) carry no faucet-mount asset on the Shopify CDN, and the only images available are retailer-hosted at Home Depot, Ace and Amazon, which the brand-hosted rule excludes. |
| fit.bathroomsServed | Not applicable in the manufacturer's own terms and not published anywhere. This is a single point-of-use device that mounts on one faucet spout; the manual, performance data sheet and WQA listings give a service flow rate but no bathroom count, and inventing one from the flow rate would be a derived guess rather than a cited fact. |
| fit.householdSize | Not published. The nearest figure the manufacturer gives is the basis for the 6-month cartridge rating, 2.2 gallons per day, which is a duty cycle rather than a household size; converting it into a number of people would require an assumed per-person consumption the brand never states. |
| fit.roOutputGpd | Does not apply: this is a single-stage carbon faucet mount, not a reverse-osmosis system, and there is no membrane permeate rate to record. The schema requires the key to be present, so it is null rather than absent. |
| fit.roTankCapacity | Does not apply: the system has no storage tank, and the manual's parts list is the faucet mount body, faucet adapters and the ZRFM-001 cartridge. The schema requires the key to be present, so it is null rather than absent. |
| fit.connectionSize | No thread size is published. The manual handles fitment by type rather than dimension - external threads take the unit directly, internal threads take the supplied adapter and washer - and its troubleshooting step for a non-fitting adapter is to 'determine your faucet thread size and consult your hardware supplier', which is the manufacturer explicitly declining to name a size. |
| cost.msrp | No manufacturer list price is obtainable. ZeroWater has removed the product from its own store, so there is no first-party price page, and the checkout.zerowater.com storefront that once held it now returns 'This store is unavailable'. Only retailer prices remain, which are recorded as streetPrice instead. |
| cost.wasteRatio | Does not apply: a faucet-mounted carbon cartridge is a dead-end filter with no reject stream, so there is no waste-to-product ratio to state. The schema requires the key to be present, so it is null rather than absent. |
| cost.moneyBackGuarantee | No manufacturer satisfaction guarantee was found. The manual and brand FAQ describe only the two-year limited warranty, whose remedy is replacement parts rather than a refund, and the brand no longer sells the product directly so there is no first-party returns offer. The 90-day Home Depot and 30-day Ace return windows are retailer policies, not a manufacturer guarantee. |
| install.estimatedHours | The manufacturer publishes no installation time. The manual gives seven steps with no duration, and the brand's launch post says only that it is 'Easy to install'. Any figure would be our estimate rather than a cited value. |
| install.video | No manufacturer-published installation video was found on any surviving first-party page. Two third-party YouTube walkthroughs surfaced in the SERP capture, one of them a 6:26 install-and-review, but neither was opened and verified, and a third result is published by a banned content competitor. Citing an unopened video would breach the opened-and-confirmed rule. |
| seo.verification | Stamped by the verify loop, not by research. Left null by design on the initial pass. |
Every source behind this page
- Retailer listingaccessed: 2026-09-04https://www.acehardware.com/departments/plumbing/water-treatment/water-filters/4026792
- Ace Hardware lists 'ZeroWater ExtremeLife Faucet Mount Water Filtration System', Mfr # ZFM-400CR, at $44.99 with an active Add to cart control on 2026-09-04
- Ace Hardware listed the same Mfr # ZFM-400CR at $44.99 on 2026-09-04, so the observed street range on that date was $37.84 to $44.99
- Ace Hardware lists Mfr # ZFM-400CR at $44.99 on 2026-09-04
- Retailer listingaccessed: 2026-09-04https://www.homedepot.com/p/Zero-Water-Extreme-Life-Chrome-Faucet-Mount-Water-Filtration-System-ZFM-400CR/321149168
- Home Depot lists Model # ZFM-400CR at $37.84 on 2026-09-04
- Street price $37.84 for Model # ZFM-400CR on 2026-09-04
- Manufacturer-supplied product copy names the medium: 'with superior carbon fiber technology, it lasts up to 6-months or 400 Gal.'
- Home Depot specifications table for Model # ZFM-400CR: 'Dimensions: H 3.5 in, W 3.11 in, D 5.2 in'
- Home Depot listed Model # ZFM-400CR at $37.84 on 2026-09-04
- WQA listingaccessed: 2026-09-04https://find.wqa.org/find-products/ctl/detail/mid/1054/cid/zero_technologies/sid/3/keyword/zfm-400
- WQA's listing for ZFM-400CR and ZFM-400WH is current as of 9/4/2026, and WQA certification requires annual manufacturing facility audits
- WQA lists ZFM-400CR and ZFM-400WH under NSF/ANSI 53 for Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA), with capacity 400 gallons and replacement element ZRFM-001
- No lead-reduction claim appears on this or any other WQA listing for the model
- The NSF/ANSI 53 health-effects listing for this model names only PFOS and PFOA as reduction claims
- WQA listing records Capacity (Gallons) 400 and Replacement Element ZRFM-001 for both ZFM-400CR and ZFM-400WH
- WQA listing records Flow Rate (GPM) 0.65 for ZFM-400CR and ZFM-400WH
- WQA listing records Replacement Element ZRFM-001 and Capacity (Gallons) 400
- The NSF/ANSI 53 listing rows for ZFM-400CR and ZFM-400WH are identical: flow rate 0.65 GPM, replacement element ZRFM-001, capacity 400 gallons, reduction claims PFOS and PFOA
- The NSF/ANSI 53 health-effects listing names only PFOS and PFOA
- WQA NSF/ANSI 53 listing for ZFM-400CR and ZFM-400WH names reduction claims 'Perfluorooctane Sulfonate (PFOS)' and 'Perfluorooctanoic Acid (PFOA)', with capacity 400 gallons
- Manufacturer datasheetaccessed: 2026-09-04https://images.thdstatic.com/catalog/pdfImages/ad/adc9a1db-9882-4626-a4a4-cab3bcf619d7.pdf
- Manual specification page: pressure range 30-100 psi, temperature range 40-100 degrees F, rated service flow 0.65 gpm, filter capacity 400 gallons / 6 months
- Manual: 'This product was designed to reduce aesthetic chlorine taste and odor, sediment and PFOA/PFOS. It was NOT designed to remove 100% of Total Dissolved Solids.'
- Manual precautions: 'Will not work on pull-out and hand-held faucets.'
- Manual operation: 'Do not filter hot water above 100F (37.7C). It will damage the filter.'
- Manual warning: do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection
- Manual installation steps 5-6: internal or external faucet threads, adapter and washer supplied, 'Tighten by hand, do not use pliers'
- The manual's parts list is a single ZRFM-001 filter cartridge, so the treatment train is one stage
- Manual, Operation and Filter Cartridge Replacement: 'Flush each new filter cartridge for 5 minutes to remove all carbon fines', identifying the medium as carbon
- Manual specifications page: 'This product was designed to reduce aesthetic chlorine taste and odor, sediment and PFOA/PFOS. It was NOT designed to remove 100% of Total Dissolved Solids.'
- Manual, Precautions: 'Will not work on pull-out and hand-held faucets.', printed beside a tick/cross diagram of the two faucet types
- Manual, Precautions, WARNING: 'Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.'
- Manual, Operation: 'WARNING: Do not filter hot water above 100F (37.7C). It will damage the filter.'
- Manual, Specifications and Operating Requirements: Temperature Range 40-100F (4.4-37.7C)
- Manual, Specifications: 'Pressure Range: 30-100 psi (2.1-6.9 bar)'
- Manual, Test Conditions: 'Inlet Pressure: 60 psi (4.1 bar)'
- Manual, Specifications: 'Temperature Range: 40-100F (4.4-37.7C)'
- Manual, Precautions: 'CAUTION: This filter must be protected from freezing, which can cause cracking of the filter and water leakage.'
- Manual, Specifications and Operating Requirements: 'Pressure: 30-100 psi (2.1-6.9 bar)' and 'Service Flow Rate: 0.65 gpm (2.46 Lpm)'
- Manual, Specifications: 'Rated Service Flow: 0.65 gpm at 60 psi (2.46 Lpm at 4.1 bar)'
- The manual's only power source is a user-replaceable CR2032 lithium coin cell driving the filter-life indicator: 'Includes a non-rechargeable Lithium metal battery (CR2032) which has an estimated life of 1 year from activation.' No mains connection appears anywhere in the installation sequence.
- The manual's seven-step installation attaches the unit to the faucet spout threads only; the parts list is the faucet mount system, faucet adapters and the ZRFM-001 cartridge, with no drain line or saddle valve
- Manual installation steps 5 and 6 both instruct 'Tighten by hand, do not use pliers', and the only fitting operations are unscrewing the aerator and hand-tightening the swivel collar
- Manual, TWO-YEAR LIMITED WARRANTY: 'Zero Technologies, LLC warrants your ExtremeLife Faucet Mount Filter (ZFM-400CR/WH) for two years from the date of purchase (ZRFM-001 filter cartridge and system battery are not covered under limited warranty) against defects in materials and workmanship'
- Manual: 'This limited warranty covers the cost of replacement parts only' and 'Dated proof of purchase required for all warranty claims'
- The manual's whole installation is seven steps: fit the cartridge, unscrew the aerator, identify external or internal faucet threads, fit the supplied adapter and washer if internal, hand-tighten the swivel collar, and hold the reset button for 2 seconds
- Manual installation steps 5 and 6: 'Tighten by hand, do not use pliers.' No tool is named anywhere in the installation sequence. A screwdriver is needed later for battery replacement, which is maintenance rather than installation.
- ZeroWater ExtremeLife 'INSTALLATION AND OPERATING INSTRUCTIONS, MODELS ZFM-400CR / ZFM-400WH', document code 2-MANUALFM-01, 10 pages: parts, specifications, precautions, installation, operation, cartridge replacement, cleaning, timer reset, battery replacement, troubleshooting, performance data and warranty
- Manual, Filter Cartridge Replacement, Timer Reset, Battery Replacement, Precautions and Cleaning sections supply all five tasks and their intervals
- Manual, Timer Reset: 'The light will change to red at 180 days to remind you that it is now time to change the filter.'
- Manual, Specifications: 'It was NOT designed to remove 100% of Total Dissolved Solids.'
- Manual, Timer Reset: 'The light will change to red at 180 days'
- Manual, Battery Replacement: 'Includes a non-rechargeable Lithium metal battery (CR2032) which has an estimated life of 1 year from activation.'
- Manual, warranty: the system battery is excluded from the two-year limited warranty
- Manual, Specifications: 'This product was designed to reduce aesthetic chlorine taste and odor, sediment and PFOA/PFOS. It was NOT designed to remove 100% of Total Dissolved Solids.'
- Manual, Specifications: 'Filter Capacity: 400 gallons / 6 months*' with the footnote 'Filter cartridge life varies depending on usage and water conditions.'
- Manual, Precautions: 'Will not work on pull-out and hand-held faucets.'
- Manual, Installation steps 4-6: remove aerator, external threads need no adapter, internal threads use the supplied adapter and washer
- Manual, Troubleshooting, ADAPTERS DON'T FIT: reuse the aerator gasket with the supplied washer, or determine faucet thread size and obtain the correct thread adapter
- Manual: not designed to remove 100% of total dissolved solids, and must not be used on microbiologically unsafe water without adequate disinfection
- WQA listingaccessed: 2026-09-04https://find.wqa.org/find-products/ctl/detail/mid/1054/cid/zero_technologies/sid/29/keyword/zfm-400
- The model's NSF/ANSI/CAN 372 listing is headed 'CERTIFIED LEAD FREE PRODUCTS - Drinking Water System Components - Lead Content' and carries no reduction claim
- The 372 listing is headed 'CERTIFIED LEAD FREE PRODUCTS' and 'NSF/ANSI/CAN 372: Drinking Water System Components - Lead Content', listing ZFM-400CR and ZFM-400WH with no reduction claim column
- The model's 372 listing is headed 'CERTIFIED LEAD FREE PRODUCTS' and 'NSF/ANSI/CAN 372: Drinking Water System Components - Lead Content', with no reduction claim
- Brand officialaccessed: 2026-09-04https://shop.culligan.com/blogs/filtration/faucet-mount-by-zerowater-is-here
- Brand states the cartridge gives 'A 6-month or 400-gallon filtration capability, compared to the 100-gallon rating of most leading brands'
- Brand states the product is 'Easy to install, and requires no additional tools for installation'
- Brand launch post: 'the filter technology was not made to remove 100% of the total dissolved solids from your water'
- Brand launch post: 'Please note that this product does not fit drip-down faucets'
- Brand launch post: 'Easy to install, and requires no additional tools for installation.'
- Brand launch post: 'requires no additional tools for installation'
- Brand's own lead wording: 'This contaminant is reduced up to 400 gallons which was tested by a 3rd party lab' and 'reducing more than 98% of lead'
- Brand launch post: 'Easily connects directly to your faucet. Please note that this product does not fit drip-down faucets'
- NSF listingaccessed: 2026-09-04https://info.nsf.org/Certified/dwtu/listings.asp?CompanyName=Zero+Technologies&submit1=Search+by+Manufacturer&Program=DWTU
- NSF DWTU directory returns 'No Matching Products Found' for manufacturer Zero Technologies, against a control search for Culligan that returned 75 products across 132 rows
- IAPMO listingaccessed: 2026-09-04https://pld.iapmo.org/
- IAPMO R&T Product Listing Directory, Listed Model search for 'ZFM-400', returns 'No data found', against a control search for listee Culligan that returned 27 rows
- IAPMO R&T Listed Model search for 'ZFM-400' returned 'No data found' against a passing control search
- IAPMO listingaccessed: 2026-09-04https://myplc.iapmo.org/certificate#/20189
- IAPMO file W-14819 for ZERO TECHNOLOGIES LLC covers Product Type 'Pour through' and 'Component' only, with no occurrence of ZFM, ZRFM or faucet
- Brand officialaccessed: 2026-09-04https://zerowater.com/pages/copy-of-frequently-asked-questions-extremelife
- Brand FAQ 'How long does my filter last? What is this based on? (2.2 GPD use)' answers 'Your filter cartridge will last 6 months / 400 gallons'
- Brand FAQ: 'Your filter cartridge will last 6 months / 400 gallons', giving two cartridges per year at the rated interval
- Brand FAQ 'What is the ExtremeLife FM Warranty?' repeats the same two-year term and the same cartridge and battery exclusions
- ZeroWater publishes a 'Faucet Mount | Frequently Asked Questions' page naming the ExtremeLife Faucet Mount Filter (ZFM-400CR/WH) and the ZRFM-001 cartridge
- Manufacturer datasheetaccessed: 2026-09-04https://cdn.shopify.com/s/files/1/0311/5499/5336/files/Performance_Data_Sheet_for_ExtremeLife_Faucet_Mounts_20210526JET.pdf?v=1638308189
- Performance data sheet: 'This water treatment device is intended only for use with potable water. Do not use water that is microbiologically unsafe or of unknown quality without proper disinfection before or after the system.'
- Performance data sheet, NSF/ANSI 53 health-effects row: PFOA / PFOS, overall percent reduction >98.9%, influent challenge 1.5 +/- 10% ug/L, maximum permissible effluent 0.07 ug/L
- Performance data sheet reductions: chlorine 99.1%, particulates Class I 97.0%, PFOA/PFOS >98.9%
- Retailer listingaccessed: 2026-09-04https://www.homedepot.com/p/Zero-Water-Extreme-Life-Faucet-Mount-Water-Filtration-System-ZRFM-001/321149177
- Home Depot listed Model # ZRFM-001 (Internet # 321149177, gtin13 0851510006668, Zero Water) at $31.02 on 2026-09-04, both in the page's Product JSON-LD offer and in the rendered price block
- Home Depot's specification table for that listing records 'Number of filters included: 1' and 'Pack Size: 1', so $31.02 is the price of a single cartridge and not of a multi-pack
- Two cartridges per year at the rated 6-month interval gives 2 x $31.02 = $62.04
- Retailer listingaccessed: 2026-09-04https://www.homedepot.com/p/reviews/Zero-Water-Extreme-Life-Chrome-Faucet-Mount-Water-Filtration-System-ZFM-400CR/321149168/
- Home Depot reviews page filter chips on 2026-09-04, in page order: 'indicator light', 'battery replacement', 'faucet filter', 'easy installation', 'easy to install', 'great taste'
- Five-star review bodies in the page's Review structured data: 'This product is very easy to install and I like that it's moveable while mounted. My water tastes great.' and 'Supper easy to install, and it comes with the different adapters to connect to any faucet.'
- Rating summary on 2026-09-04: 3.5 out of 179 reviews, 59% recommend, distribution 5 star 85, 4 star 18, 3 star 17, 2 star 16, 1 star 43
- Two-star review bodies in the page's Review structured data on 2026-09-04: 'I have the 5gallon pitcher and it's great! But the faucet filter is reading the same TDS as my tap water. I'm so confused.' and 'I was disappointed to learn that this filter doesn't match the pitchers, the TDS reading for this out of the box was 13'
- 'faucet filter' is one of the six review terms Home Depot surfaces as filter chips on the page
- One-star review body in the page's Review structured data, headline 'Indicator Light': 'Right out of the package, the indicator light doesn't work. Replaced the battery and still doesn't work.'
- Rating summary on 2026-09-04: 3.5 out of 179 reviews, 59% recommend, distribution 5 star 85, 4 star 18, 3 star 17, 2 star 16, 1 star 43, which sums to 179
- Home Depot review summary records buyers reporting that it 'does not significantly lower total dissolved solids as expected'
- Reddit threadaccessed: 2026-09-04https://www.reddit.com/r/WaterTreatment/comments/1b1pqvh/faucet_mounted_filter_that_is_proven_to_remove/
- r/WaterTreatment thread titled 'faucet- mounted filter that is proven to remove PFAs', browser-verified on 2026-09-04, in which one commenter names the 'Extremelife Chrome Faucet Mount By Zerowater / Culligan' and a second commenter reports owning two of them
- Government agencyaccessed: 2026-09-04https://www.cpsc.gov/search?search_api_fulltext=ZeroWater
- CPSC site search returned no results for 'ZeroWater', 'Zero Technologies' and 'ZFM-400' on 2026-09-04, against a control search for 'water filter recall' that returned 12 results
- CPSC site search returned no results for ZeroWater, Zero Technologies and ZFM-400 on 2026-09-04, against a control search for 'water filter recall' that returned 12 results
- Tier-1 journalismaccessed: 2026-09-04https://news.bloomberglaw.com/ip-law/clorox-loses-bid-to-toss-zerowaters-filter-antitrust-lawsuit
- The litigation associated with the ZeroWater name is Zero Technologies LLC's own antitrust and patent action against Clorox and its Brita unit over certification standards for GRAVITY-FED water filters, in which ZeroWater is the plaintiff; it does not concern this faucet-mount system
- Bloomberg Law, 2025-06-06: 'Clorox Co. must continue fighting ZeroWater's antitrust claims over high-performance water filters after a federal judge refused to dismiss the case', and 'Zero Technologies LLC, a unit of Culligan International Co., alleges Clorox and its Brita unit manipulated NSF International's certification standards for gravity-fed water filters'
- WQA listingaccessed: 2026-09-04https://find.wqa.org/find-products/ctl/detail/mid/1054/cid/zero_technologies/sid/1/keyword/zfm-400
- The NSF/ANSI 42 listing rows for ZFM-400CR and ZFM-400WH are likewise identical, both naming Aesthetic Chlorine, Nominal Particulate Class I and Taste and Odor
- WQA NSF/ANSI 42 listing names Aesthetic Chlorine, Nominal Particulate Class I and Taste and Odor for both models
- Retailer listingaccessed: 2026-09-04https://www.amazon.com/dp/B0B1NT92CF
- The Amazon listing 'ZeroWater Chrome Faucet Mount' showed 'Currently unavailable. We don't know when or if this item will be back in stock.' on 2026-09-04
- WQA listingaccessed: 2026-09-04https://find.wqa.org/find-products/ctl/detail/mid/1054/cid/zero_technologies/sid/63/keyword/zfm-400
- WQA NSF/ANSI 401 listing names Microplastics for both models
Cite this page
TapWaterData Editorial. "ZeroWater Faucet Filter (ExtremeLife ZFM-400): Specs & Certs." TapWaterData, verified 2026-09-04. https://www.tapwaterdata.com/filters/brand/zerowater/faucet-filter
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