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Waterdrop CF filter

  • Reverse Osmosis
  • Point of use
  • City water
  • Well water
  • Replacement element
  • Listed

$29.99as of 2026-08-31

Primary sourceVerified 2026-08-31Brand official

Check price at WaterdropCheck price at Amazon

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Our verdict on the Waterdrop CF filter

As verified on 2026-08-31, the Waterdrop WD-G3-N1CF is the six-month, 550-gallon pre-sediment and activated-carbon-block cartridge for the G3P800, G3P600, and G3P400 point-of-use RO systems; the G3P600 manual requires pre-filtration before well water reaches that host.[1][2]

Best for

  • Municipal-water installations using this point-of-use RO cartridge.
  • G3P600 well-water installations with upstream pre-filtration.

Not for

  • G3P600 installations supplied directly by well water without the pre-filtration its manual requires.

Primary sourceVerified 2026-08-31Brand officialManufacturer datasheet

Which models the Waterdrop CF filter fits

The Waterdrop CF filter fits the 3 models listed below, verified 2026-08-31.[1]

ModelNotes
WD-G3P800-WG3P800 host
WD-G3P600G3P600 host
WD-G3-WG3P400 host

Primary sourceVerified 2026-08-31Brand official

Certification check: Waterdrop CF filter

Listed by IAPMO R&T under NSF/ANSI 372 and NSF/ANSI 58, checked in the certifier directories as of 2026-08-31.

IAPMO R&T
NSF/ANSI 372NSF/ANSI 58

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.

DirectoryResultListing
NSFNo listing found (checked 2026-08-31)View listing
IAPMO R&TListing found (checked 2026-09-03)View listing
WQANo listing found (checked 2026-08-31)View listing

Claimed vs. certified: Waterdrop CF filter

ContaminantStatusThird-party listingWhat the brand says
TasteMarketed onlyNo entry

  • “The CF filter employs the activated carbon block made by the superior Sri Lankan coconut shell. In this way, we give you water that is pure and tasty.”

    Captured 2026-08-31

    View the brand’s page
Lead content of the material (lead-free plumbing product; not a lead-reduction claim)Certified only

  • “These products have been verified with weighted average lead content <=0.25%; Solder and flux lead content <=0.2%.”

    NSF/ANSI 372IAPMO R&TVerified 2026-09-03

    View listing
No entry
Material safety and structural integrity (not a contaminant-reduction claim)Certified only

  • “Carbon filter WD-G3-CB and PP filter WD-G3-CF certified for Material Safety and Structural Integrity when used in WD-G3-W, WD-G3P600 and WD-G3P800 RO System.”

    NSF/ANSI 58IAPMO R&TVerified 2026-09-03

    View listing
No entry

How long the Waterdrop CF filter lasts, and what it costs a year

The Waterdrop CF filter is rated for 550 gallons or 6 months, verified 2026-08-31. Replacing it on that schedule costs $59.98 a year, verified 2026-08-31.

Rated capacity

550 gallons[1][2]

Primary sourceVerified 2026-08-31Manufacturer datasheetBrand official

Rated service life

6 months[1][2]

Primary sourceVerified 2026-08-31Manufacturer datasheetBrand official

Cost per year

ElementReplaceCost per year
WD-G3-N1CFevery 6 months, or every 550 gallons$59.98
Total per year$59.98

EstimatedVerified 2026-08-31Brand officialManufacturer datasheet

What the Waterdrop CF filter does not do

For the documented G3P600 host, well water must first pass through pre-filtration; its manual lists municipal tap water as the feed-water requirement.

Do not buy it for these situations

  • Well waterFor the documented G3P600 host, well water must first pass through pre-filtration; its manual lists municipal tap water as the feed-water requirement.[1]

    Primary sourceVerified 2026-08-31Manufacturer datasheet

How the Waterdrop CF filter works

The Waterdrop CF filter treats water in two stages: Sediment filtration, then Activated carbon, verified 2026-08-31.[1][2]

StageMethodMediaMicron rating
1Sediment filtrationpre-sedimentNot recorded
2Activated carbonsuperior Sri Lankan coconut shell activated carbon blockNot recorded

Primary sourceVerified 2026-08-31Manufacturer datasheetBrand official

Fit and sizing: Waterdrop CF filter

The Waterdrop CF filter is a reverse osmosis unit installed at the point of use, for city water and well water.

Form factorReverse Osmosis
Installed atPoint of use (one fixture)
Water sourceCity water and Well water
Dimensions12.1 in H × 3.3 in W × 3.3 in D[1]

Primary sourceVerified 2026-08-31Brand official

What the Waterdrop CF filter really costs

The Waterdrop CF filter costs $29.99 as of 2026-08-31. Over ten years, including installation and replacement elements, the recorded total is $599.80.

Street price

$29.99 as of 2026-08-31[1]

Primary sourceVerified 2026-08-31Brand official

DIY install[1][2]

Primary sourceVerified 2026-08-31Brand officialManufacturer datasheet

Replacement schedule

ElementReplaceCost per year
WD-G3-N1CFevery 6 months, or every 550 gallons$59.98

EstimatedVerified 2026-08-31Brand officialManufacturer datasheet

Ten-year cost of ownership

Purchase price (as of 2026-08-31)$29.99
Replacement elements, 10 × $59.98/year$599.80
Sum of the lines above (as of 2026-08-31)$629.79
Recorded ten-year total$599.80

Money-back guarantee: 30-day risk-free return for eligible items received within 30 days in the continental United States; customers pay return shipping unless the return is due to a quality issue. (30 days)[1]

Primary sourceVerified 2026-08-31Brand official

Installing the Waterdrop CF filter

Installing the Waterdrop CF filter is an easy job of about 3 seconds. DIY install, verified 2026-08-31.

DIY difficulty

Easy[1][2]

Primary sourceVerified 2026-08-31Brand officialManufacturer datasheet

Estimated time

3 seconds[1]

Primary sourceVerified 2026-08-31Brand official

Do you need a plumber?

DIY install[1][2]

Primary sourceVerified 2026-08-31Brand officialManufacturer datasheet

Tools required

No tools required.[1]

Primary sourceVerified 2026-08-31Brand official

Manufacturer documentation

Ongoing maintenance

  • Replace the CF cartridge when its indicator reaches the earlier of six months or 550 gallons. — every 6 months
  • Hold the CF filter-life indicator for 7 seconds to reset it after replacement.
  • Allow the automatic 5-minute CF flush to finish after replacement.

Primary sourceVerified 2026-08-31Manufacturer datasheet

Track record: Waterdrop CF filter

Waterdrop shows 4.8 out of 5 from 312 reviews as of 2026-08-31; Amazon shows 4.8 out of 5 from 3,004 reviews as of 2026-08-31.

SourceRatingReviewsAs of
Waterdrop4.8 out of 53122026-08-31
Amazon4.8 out of 53,0042026-08-31

Recalls and litigation

None found as of 2026-09-03 in the sources cited below.[1][2]

Secondary sourceVerified 2026-09-03Government agencyUnverified

The Waterdrop CF filter and cartridges sold as compatible

IAPMO R&T file WC-13977 lists this cartridge under its OEM identity — Brand Name "Waterdrop", Model Number "WD-G3-CF", under the heading "Product Type Component" — and that certificate covers lead content of the material only. File WC-13976 adds a footnote certifying the cartridge for material safety and structural integrity under NSF/ANSI 58-2024, and only when it is used in the WD-G3-W, WD-G3P600 and WD-G3P800 RO systems. Neither listing carries a contaminant-reduction claim for this cartridge; the NSF/ANSI 42 and NSF/ANSI 53 reduction claims on the listee's sibling files are attributed to the separate WD-G3-CB carbon cartridge, not to this one. The same WC-13977 certificate separately lists AQUA CREST's compatible AQ-G3-CF alongside the Waterdrop entry, so a third-party cartridge sold as compatible is not covered by the Waterdrop row; what any such cartridge does or does not carry is established only by its own dated directory listing, which we have not checked here.[1][2]

Primary sourceVerified 2026-09-03IAPMO listing

Waterdrop CF filter questions, answered

How often should I replace my waterdrop CF filter?

Replace the WD-G3-N1CF at the earlier of six months or 550 gallons. The G3/G3P600 manual says the filter-life indicator uses whichever limit comes first.

Sources: [1]

How long does a waterdrop CF filter last?

The WD-G3-N1CF lasts up to six months or 550 gallons. Actual timing follows the compatible system's filter-life indicator and water conditions.

Sources: [1][2]

How long should a waterdrop CF filter last?

The WD-G3-N1CF should be replaced at up to six months or 550 gallons, whichever its indicator reaches first. Waterdrop notes that water conditions can affect the interval.

Sources: [1][2]

What does the waterdrop CF filter do?

The Waterdrop WD-G3-N1CF is the pre-sediment and carbon-block stage in its compatible G3 RO systems. The OEM page identifies the carbon medium as a Sri Lankan coconut-shell activated carbon block.

Sources: [1][2]

What does a waterdrop CF filter do?

For the WD-G3-N1CF, the CF cartridge provides the compatible G3 RO system's pre-sediment and carbon-block stage. Waterdrop specifies a coconut-shell activated carbon block for this exact cartridge.

Sources: [1][2]

What does CF filter do?

For this product, CF is the compatible G3 system's pre-sediment and carbon-block filter. It is a different stage from the system's RO membrane and post-carbon cartridge.

Sources: [1]

How do I replace a Waterdrop filter?

To replace the WD-G3-N1CF, close the RO faucet, wait 30 seconds, turn the old cartridge counterclockwise, and turn the new one clockwise. Then hold the CF indicator for 7 seconds to reset it and allow the automatic 5-minute flush to finish.

Sources: [1]

Where can I find a replacement CF filter for my Waterdrop reverse osmosis system?

The exact WD-G3-N1CF is available from Waterdrop's model-specific product page and Amazon ASIN B07NZSSBWC as of 2026-08-31. Confirm that the host is WD-G3P800-W, WD-G3P600, or WD-G3-W/G3P400 before ordering.

Sources: [1][2]

Is the Waterdrop WD-G3-N1CF listed in the three certification directories?

Verified health claim

It is listed in one of the three: IAPMO R&T file WC-13977 was Active on 2026-09-03 and lists Brand Name "Waterdrop", Model Number "WD-G3-CF" under "Product Type Component". Read that listing for what it actually covers — lead content of the material under NSF/ANSI/CAN 372-2020, plus material safety and structural integrity under NSF/ANSI 58-2024 on file WC-13976 when the cartridge is used in the WD-G3-W, WD-G3P600 or WD-G3P800 systems. Neither file certifies this cartridge to reduce any contaminant. No listing was found in the NSF or WQA directories as of 2026-08-31.

Sources: [1][2][3][4]

Sources and data report: Waterdrop CF filter

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

FieldWhy it is blank
certified.certIndexKeyAn exact search for WD-G3-N1CF, G3-N1CF, and WD-G3-CF found no matching entry in the repository certification corpus; the separate dated live directory checks are recorded in certified.liveCertChecks.
fit.bathroomsServedThe exact cartridge page and the captured G3/G3P600 manual do not rate this replacement element by bathrooms served.
fit.householdSizeThe exact cartridge page and the captured G3/G3P600 manual do not publish a household-size rating for this element.
fit.serviceFlowGpmThe OEM cartridge page publishes no continuous service-flow rating, and the host manual does not assign one to the CF element.
fit.roOutputGpdWD-G3-N1CF is the pre-sediment/carbon element rather than the RO membrane; the only GPD values found belong to host systems, not this cartridge.
fit.roTankCapacityThe exact cartridge page and the captured host manual publish no tank-capacity value attributable to WD-G3-N1CF.
fit.pressureRangeThe manual's feed-pressure range is a G3/G3P600 host-system specification; the exact CF cartridge page publishes no standalone pressure range covering every listed host.
fit.temperatureRangeThe manual's temperature range is a G3/G3P600 host-system specification; the exact CF cartridge page publishes no standalone range covering every listed host.
fit.connectionSizeThe OEM sources describe a proprietary twist-in cartridge and publish dimensions, but no conventional connection-size specification.
fit.requiresElectricityThe element itself has no separately published electrical requirement, while electricity requirements belong to the compatible RO hosts and should not be imputed to the cartridge.
fit.requiresDrainThe element itself has no separately published drain requirement, while drain requirements belong to the compatible RO hosts and should not be imputed to the cartridge.
cost.msrpThe exact Waterdrop page and exact Amazon listing showed current selling prices but did not label a manufacturer suggested retail price.
cost.wasteRatioThe CF element has no independently published waste ratio; drain ratios found for host RO systems vary and were not assigned to this cartridge.
cost.warrantyWaterdrop's service policy does not publish an exact base-warranty term for WD-G3-N1CF, and its extended-warranty section identifies filters as consumables outside that coverage.
seo.verificationThe independent verification loop has not run yet; it stamps this field after re-deriving the record's claims.

Every source behind this page

  1. Brand officialaccessed: 2026-08-31
    https://www.waterdropfilter.com/products/wd-g3-n1cf
    • The exact WD-G3-N1CF product page offered the cartridge for purchase and showed it in stock on 2026-08-31.
    • The OEM page identifies WD-G3P800-W, WD-G3P600, and WD-G3-W/G3P400 as compatible hosts for WD-G3-N1CF.
    • The visible service-life copy on the exact product page states 550 gallons.
    • The exact product page states a service life of up to six months, dependent on water condition.
    • The OEM page supports compatible G3 host models, six-month/550-gallon service life, and the point-of-use RO cartridge identity.
    • The exact product page identifies the carbon media as a Sri Lankan coconut-shell activated carbon block.
    • The exact product page publishes WD-G3-N1CF dimensions of 3.3 by 3.3 by 12.1 inches.
    • The exact Waterdrop product page showed a one-time purchase price of $29.99 USD on 2026-08-31.
    • The OEM page describes a three-second twist-and-pull installation without tools.
    • The exact product page supplies the $29.99 one-time price and six-month/550-gallon replacement interval used to calculate $59.98 per year.
    • The OEM page describes a three-second tool-free twist-and-pull replacement.
    • The OEM page states Easy Installation In 3 Seconds.
    • The OEM page says the cartridge uses a twist-and-pull design without any tools.
    • The exact product page states that service life is up to six months or 550 gallons based on water condition.
    • The OEM product page says the service life is based on water condition.
    • The OEM product page identifies the carbon medium as Sri Lankan coconut-shell activated carbon block.
    • The exact product page identifies the activated-carbon-block media.
    • The OEM exact-model page was live for purchase and identifies the compatible G3 hosts.
  2. Manufacturer datasheetaccessed: 2026-08-31
    https://cdn.shopify.com/s/files/1/0078/6156/7570/files/WD-G3P600_WD_User_Manual.pdf?v=1679587500
    • The OEM G3/G3P600 manual's filter-life table rates the CF cartridge at up to 550 gallons.
    • The OEM G3/G3P600 manual's filter-life table rates the CF cartridge at up to six months.
    • The OEM manual names CF as the pre-sediment and carbon-block filter, rates it at six months or 550 gallons, lists municipal tap water as feed, and requires pre-filtration for well water.
    • The OEM manual names CF as the Pre-sediment and Carbon Block Filter, establishing the two treatment methods and their order.
    • The G3/G3P600 manual lists municipal tap water as the feed-water requirement and says well water must go through pre-filtration.
    • The OEM manual documents owner-performed twist-off/twist-on CF replacement steps.
    • The OEM manual independently supports replacing the CF cartridge at up to six months or 550 gallons.
    • The manual's replacement procedure is an owner-performed twist-off/twist-on sequence.
    • OEM G3/G3P600 user manual covering CF filter identity, service life, replacement, reset, and flushing.
    • The manual provides the six-month/550-gallon interval, 7-second indicator reset, and automatic 5-minute post-replacement flush.
    • The OEM manual states a CF service life of up to six months or 550 gallons, whichever indicator limit comes first.
    • The OEM manual rates the CF cartridge at up to six months or 550 gallons and explains that the system tracks filter life.
    • The OEM manual states the up-to-six-month or 550-gallon CF interval and uses the earlier indicator limit.
    • The OEM manual names CF as the Pre-sediment and Carbon Block Filter.
    • The OEM manual labels CF as Pre-sediment and Carbon Block Filter and separately identifies the RO and CB cartridges.
    • The OEM manual provides the faucet, 30-second wait, twist directions, 7-second reset, and 5-minute automatic flush steps.
  3. Brand officialaccessed: 2026-08-31
    https://www.waterdropfilter.com/pages/service-policy#ret
    • Waterdrop's service policy publishes a 30-day return window and its continental-US and return-shipping conditions.
  4. Brand officialaccessed: 2026-08-31
    https://www.youtube.com/watch?v=RC2RKLaKJdU
    • Waterdrop's G3 reverse-osmosis filter replacement guide video is the model-family install video linked from the OEM page.
  5. Government agencyaccessed: 2026-09-03
    https://www.saferproducts.gov/RestWebServices/Recall?format=json&RecallDescription=Waterdrop
    • CPSC's official recall web service, queried with RecallDescription=Waterdrop, returned an empty result set on 2026-09-03.
    • A positive control on the same endpoint (RecallTitle=water filter) returned one recall, so the endpoint demonstrably returns data when a matching recall exists and the empty Waterdrop result is an executed query rather than an unfiltered page.
  6. Unverifiedaccessed: 2026-08-31
    https://duckduckgo.com/?q=%22WD-G3-N1CF%22%20%28lawsuit%20OR%20litigation%20OR%20recall%29&ia=web
    • The live exact-model news/web search returned no result for a lawsuit, litigation, or recall involving WD-G3-N1CF on 2026-08-31.
  7. IAPMO listingaccessed: 2026-09-03
    https://myplc.iapmo.org/certificate#/19834
    • IAPMO R&T file WC-13977, Active and current as of September 3, 2026, lists Brand Name Waterdrop / Model Number WD-G3-CF under the heading Product Type Component, certified for lead content of the material under NSF/ANSI/CAN 372-2020.
    • The same certificate's Component table separately lists AQUA CREST / AQ-G3-CF and AQUA CREST / AQ-G3-CB alongside the Waterdrop entries.
    • IAPMO R&T file WC-13977 is Active and current as of September 3, 2026, and lists Brand Name Waterdrop / Model Number WD-G3-CF under Product Type Component, certified for lead content of the material under NSF/ANSI/CAN 372-2020.
  8. IAPMO listingaccessed: 2026-09-03
    https://myplc.iapmo.org/certificate#/19833
    • IAPMO R&T file WC-13976, certified to NSF/ANSI 58-2024, carries the footnote certifying WD-G3-CF for Material Safety and Structural Integrity only when used in the WD-G3-W, WD-G3P600 and WD-G3P800 RO systems.
    • The contaminant-reduction rows on this certificate belong to the RO system rather than to the CF cartridge.
    • IAPMO R&T file WC-13976 certifies WD-G3-CF for Material Safety and Structural Integrity under NSF/ANSI 58-2024 when used in the WD-G3-W, WD-G3P600 and WD-G3P800 RO systems, and carries no contaminant-reduction claim for the cartridge.
  9. Retailer listingaccessed: 2026-08-31
    https://www.amazon.com/dp/B07NZSSBWC
    • Amazon ASIN B07NZSSBWC opened to the exact Waterdrop G3-N1CF replacement filter and named the G3-W, G3P600, and G3P800 hosts.
  10. NSF listingaccessed: 2026-08-31
    https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=WD%2DG3%2DN1CF&hdModlStd=ModlStd&
    • The live NSF directory search returned no WD-G3-N1CF listing after exact-model, Waterdrop, CF filter, and alias checks.
  11. WQA listingaccessed: 2026-08-31
    https://find.wqa.org/find-products#/
    • The live WQA directory search returned no WD-G3-N1CF listing after exact-model, Waterdrop, CF filter, and alias checks.

Cite this page

TapWaterData Editorial. "Waterdrop CF Filter Replacement: Specs & Cert Check." TapWaterData, verified 2026-08-31. https://www.tapwaterdata.com/filters/brand/waterdrop/cf-filter

TapWaterData is independent and not affiliated with NSF International, IAPMO, or WQA.

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