iSpring Replacement filters
- Reverse Osmosis
- Point of use
- City water
- Replacement element
- Listed
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Our verdict on the iSpring Replacement filters
Choose by host model: MRO500 is for RO500, MRO600 is for RO600, and FA15 is the alkaline inline stage used by RCC7AK/RCC7P-AK and other compatible under-sink RO systems. These three cartridges are not interchangeable.[1][2][3][4]
Best for
- Owners of a matching point-of-use RO host who can identify the exact cartridge model before ordering
Not for
- Buyers looking for one universal iSpring replacement cartridge
- FA15 users whose RCC-series host cannot stay within 3.1–4.8 bar or whose source water is microbiologically unsafe or of unknown quality without adequate disinfection
Primary sourceVerified 2026-08-30Brand officialManufacturer datasheet
Which models the iSpring Replacement filters fits
The iSpring Replacement filters fits the 4 models listed below, verified 2026-08-30.[1][2][3]
| Model | Notes |
|---|---|
| RO500 | Use MRO500 |
| RO600 | Use MRO600 |
| RCC7AK | Uses FA15 as its alkaline stage |
| RCC7P-AK | Uses FA15 as its alkaline stage |
Primary sourceVerified 2026-08-30Brand official
Certification check: iSpring Replacement filters
Listed by NSF under NSF/ANSI 58, checked in the certifier directories as of 2026-08-30.
- NSF
- NSF/ANSI 58
| Directory | Result | Listing |
|---|---|---|
| NSF | Listing found (checked 2026-08-30) | View listing |
| IAPMO R&T | No listing found (checked 2026-08-30) | View listing |
| WQA | No listing found (checked 2026-08-30) | View listing |
Claimed vs. certified: iSpring Replacement filters
| Contaminant | Status | Third-party listing | What the brand says |
|---|---|---|---|
| FA15 — pH | Marketed only | No entry |
|
| MRO500 — lead, chlorine, fluoride, arsenic, asbestos, calcium, sodium, and other contaminants | Marketed only | No entry |
|
| MRO600 — lead, chlorine, fluoride, arsenic, hormones, asbestos, calcium, sodium, and other contaminants | Marketed only | No entry |
|
| Asbestos (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Barium (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Cadmium (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Chromium, trivalent (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Copper (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Fluoride (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Lead (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Selenium (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Total dissolved solids (RCC7AK systems listing FA15 as a replacement module) | Certified only |
| No entry |
| Total dissolved solids (systems using MRO500) | Certified only |
| No entry |
What the iSpring Replacement filters does not do
The three named cartridges are not interchangeable: MRO500 is dedicated to RO500, MRO600 is for RO600, and FA15 is a separate alkaline inline stage. The iSpring Replacement filters's recorded operating limits are MRO500 replacement interval at least 2 years and up to 3 years, MRO600 filter life up to 24 months, FA15 service life up to 6 months, FA15 service capacity up to 1,500 gallons, RCC-series inlet water pressure for FA15 hosts at least 3.1 bar and up to 4.8 bar, verified 2026-08-30.
The three named cartridges are not interchangeable: MRO500 is dedicated to RO500, MRO600 is for RO600, and FA15 is a separate alkaline inline stage.[1][2][3]
Primary sourceVerified 2026-08-30Brand official
For FA15 installed in an RCC-series host, the manual says not to use microbiologically unsafe or unknown-quality water without adequate disinfection before or after the system.[1]
Primary sourceVerified 2026-08-30Manufacturer datasheet
Operating limits
| Parameter | Limit | What it means |
|---|---|---|
| MRO500 replacement interval | at least 2 years and up to 3 years[1] | Primary sourceVerified 2026-08-30Brand official |
| MRO600 filter life | up to 24 months[1] | Depends on daily use and water quality Primary sourceVerified 2026-08-30Brand official |
| FA15 service life | up to 6 months[1] | Replace at six months or 1,500 gallons, whichever comes first Primary sourceVerified 2026-08-30Brand official |
| FA15 service capacity | up to 1,500 gallons[1] | Replace at 1,500 gallons or six months, whichever comes first Primary sourceVerified 2026-08-30Brand official |
| RCC-series inlet water pressure for FA15 hosts | at least 3.1 bar and up to 4.8 bar[1] | The manual calls for a booster pump below 3.1 bar and a regulator above 4.8 bar Primary sourceVerified 2026-08-30Manufacturer datasheet |
Do not buy it for these situations
Water pressureAn RCC-series host using FA15 needs a booster pump below 3.1 bar and a pressure regulator above 4.8 bar when high pressure or water hammer occurs.[1]
Primary sourceVerified 2026-08-30Manufacturer datasheet
Well waterDo not use an RCC-series host on microbiologically unsafe or unknown-quality water without adequate disinfection before or after the system.[1]
Primary sourceVerified 2026-08-30Manufacturer datasheet
Fit and sizing: iSpring Replacement filters
The iSpring Replacement filters is a reverse osmosis unit installed at the point of use, for city water.
| Form factor | Reverse Osmosis |
|---|---|
| Installed at | Point of use (one fixture) |
| Water source | City water |
What the iSpring Replacement filters really costs
Warranty: One-year manufacturer warranty; iSpring says registration is required to verify the purchase and activate coverage. (1 years)[1]
Primary sourceVerified 2026-08-30Brand official
Installing the iSpring Replacement filters
Installing the iSpring Replacement filters is an easy job. DIY install, verified 2026-08-30.
Manufacturer documentation
- Install manual: https://www.ispringfilter.com/index.php?rt=account/download/startdownload&download_id=237 (accessed 2026-08-30)
Ongoing maintenance
- Replace MRO500 every 2–3 years
- Replace MRO600 by 24 months, sooner when daily use or water quality shortens its life — every 24 months
- Replace FA15 at six months or 1,500 gallons, whichever comes first — every 6 months
Primary sourceVerified 2026-08-30Brand official
Track record: iSpring Replacement filters
Amazon — MRO500 shows 4.8 out of 5 from 76 reviews as of 2026-08-30.
| Source | Rating | Reviews | As of |
|---|---|---|---|
| Amazon — MRO500 | 4.8 out of 5 | 76 | 2026-08-30 |
Recalls and litigation
LitigationThe FTC's 2017 administrative case alleged that iSpring used false, misleading, or unsupported Made-in-USA claims; the Commission made the consent order final on April 18, 2017. (2017-04-18)
https://www.ftc.gov/legal-library/browse/cases-proceedings/172-3033-ispring-water-systemsLitigationIn 2019, iSpring agreed to pay a $110,000 civil penalty to settle FTC charges that it violated the 2017 order by making false Made-in-USA claims. (2019-04-12)
https://www.ftc.gov/news-events/news/press-releases/2019/04/marketer-water-filtration-systems-pay-110000-civil-penalty-deceptive-made-usa-advertisements
Primary sourceVerified 2026-08-30Government agency
The iSpring Replacement filters against its family and its rivals
The iSpring Replacement filters has 3 siblings in its family: MRO500, MRO600, FA15.
The rest of the family
| Model | What differs |
|---|---|
| MRO500 | RO500 membrane; 500 gpd rating and a stated 2–3 year replacement interval |
| MRO600 | RO600 membrane; up to 600 gpd and up to 24 months of service |
| FA15 | Alkaline inline stage; six months or 1,500 gallons, whichever comes first |
The iSpring Replacement filters and cartridges sold as compatible
NSF's NSF/ANSI 58 directory listings name OEM MRO500 and FA15 as replacement modules within specific listed iSpring systems. That listing scope should not be read as a certification claim for MRO600 or for third-party cartridges sold as compatible.[1][2][3][4]
Primary sourceVerified 2026-08-30NSF listingIAPMO listingWQA listing
iSpring Replacement filters questions, answered
How often should I replace my iSpring filters?
How do I change the filters on my iSpring water filter?
What are the common problems with iSpring water filters?
How do I know when my RO filter needs replacing?
Sources and data report: iSpring Replacement filters
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.family | The three OEM pages identify separate cartridge models but do not publish one official family name covering MRO500, MRO600, and FA15. |
| identity.asin | This is a multi-variant element record, so no single ASIN represents it; Amazon ASIN B09YMR8YJS was verified only for the labelled MRO500 affiliate row. |
| identity.upc | The OEM pages, manual, and opened Amazon listing did not display a UPC for the multi-variant record. |
| identity.capacity | FA15 has a 1,500-gallon service limit, while the MRO models publish output and time-based life rather than one family-level capacity; a shared value would be false. |
| identity.lifespan | The variants differ: MRO500 is 2–3 years, MRO600 is up to 24 months, and FA15 is six months or 1,500 gallons, so no single family lifespan is supportable. |
| certified.certIndexKey | A repository search found no MRO500, MRO600, or FA15 join entry in the local certification index; this says nothing negative about live certification. |
| mechanism.treatmentMethods | The record combines reverse-osmosis membranes with an alkaline remineralization cartridge; the schema offers no honest single treatment train for this mixed family, and alkaline remineralization has no permitted method slug. |
| fit.bathroomsServed | The OEM sources describe point-of-use cartridges and publish no bathroom range. |
| fit.householdSize | The OEM cartridge pages and RCC manual publish no household-size range shared by the three variants. |
| fit.serviceFlowGpm | MRO500 publishes an up-to flow in its description, but MRO600 and FA15 do not publish a comparable shared service-flow specification. |
| fit.roOutputGpd | MRO500 and MRO600 have different outputs (500 and 600 gpd), while FA15 is not an RO membrane; no family-level RO output is valid. |
| fit.roTankCapacity | The OEM element pages do not publish a tank capacity, and these cartridges fit hosts with different tank arrangements. |
| fit.dimensions | Each cartridge has different dimensions, and the schema has no per-variant dimensions field. |
| fit.pressureRange | The RCC manual publishes 3.1–4.8 bar for RCC hosts, but that range was not established for the RO500 and RO600 hosts, so it is scoped in effectivenessBounds instead of generalized here. |
| fit.temperatureRange | The RCC manual publishes 4–38°C for RCC hosts, but no shared range was established for all three cartridge hosts. |
| fit.connectionSize | FA15 uses a 1/4-inch fitting while MRO500 and MRO600 are proprietary twist-in cartridges; no shared connection size exists. |
| fit.requiresElectricity | Electricity is a property of the host system and differs between the RCC and tankless RO families; the element pages do not support one family-level boolean. |
| fit.requiresDrain | Drain requirements belong to the host RO system, and the mixed host set does not support one element-family boolean. |
| cost.msrp | iSpring displays current selling prices but does not label a shared MSRP for this three-variant record. |
| cost.streetPrice | Prices differ by variant; Amazon showed MRO500 at $91.89 while the OEM pages showed different prices for MRO600 and FA15, so a single family price would mislead. |
| cost.replacementSchedule | The schedule schema cannot express MRO500's 2–3 year range and one family row would hide the three different variant intervals; exact intervals are retained in effectivenessBounds and maintenanceTasks. |
| cost.tenYearTotalUsd | No single family purchase price or schema-compatible replacement schedule exists, so a ten-year total cannot be calculated without inventing a variant mix. |
| cost.wasteRatio | Waste ratio is a host-system performance specification, not a shared property of these replacement elements; the OEM pages publish different host ratios. |
| cost.moneyBackGuarantee | MRO500 states a 30-day guarantee, but equivalent terms were not established for MRO600 and FA15, so it was not generalized to the family. |
| install.estimatedHours | The OEM pages describe quick changes but publish no elapsed-time estimate shared by all three variants. |
| install.tools | MRO500 and MRO600 explicitly need no tools, but the FA15 page does not publish a complete tool requirement; an empty family list would overstate the evidence. |
| install.video | Live SERPs returned iSpring replacement videos, but none was verified as covering all three named cartridge variants. |
| seo.verification | The independent verification loop has not run; the pipeline intentionally stamps this field later. |
Every source behind this page
- Brand officialaccessed: 2026-08-30https://www.ispringfilter.com/ispring-mro500-high-flow-ro-membrane-replacement-for-ro500-tankless-reverse-osmosis-water-filtration-system-500gpd
- iSpring maintains a current MRO500 product page and showed the cartridge in stock on 2026-08-30
- MRO500 is dedicated to iSpring RO500 tankless systems
- MRO500 host compatibility and service interval
- MRO500 is dedicated to RO500
- MRO500 replacement interval is every 2–3 years
- MRO500 is described as a quick, no-tool filter change
- iSpring calls MRO500 replacement quick and easy and says no tools are required
- MRO500 2–3 year replacement interval
- MRO500 quick, no-tool change
- MRO500 interval
- Brand officialaccessed: 2026-08-30https://www.ispringfilter.com/ispring-mro600-ro-membrane-reverse-osmosis-replacement-high-flow-up-to-600-gpd-251-pure-to-waste-water-ratio
- iSpring maintains a current MRO600 product page; it was out of stock rather than marked discontinued
- MRO600 is the replacement RO membrane for iSpring RO600 tankless systems
- MRO600 host compatibility and service life
- MRO600 fits RO600
- MRO600 filter life is up to 24 months
- MRO600 uses an effortless twist-and-lock, no-tool replacement
- iSpring describes MRO600 replacement as effortless, taking seconds, with no tools
- MRO600 up-to-24-month filter life
- MRO600 up-to-24-month service life
- MRO600 twist-and-lock, no-tool change
- MRO600 interval
- Brand officialaccessed: 2026-08-30https://www.ispringfilter.com/ispring-fa15-10-inch-inline-3-layer-alkaline-replacement-water-filter-cartridge-with-mineral-balls-calcite-and-corosex
- iSpring maintains a current, in-stock FA15 product page
- FA15 is an alkaline inline cartridge with broad under-sink RO compatibility
- FA15 is an alkaline inline cartridge, not an RO membrane
- FA15 service life is six months or 1,500 gallons, whichever comes first
- FA15 service capacity is 1,500 gallons or six months, whichever comes first
- FA15 uses a push-fit quick connection intended for faster replacement
- FA15 uses a push-fit quick connection for faster replacement
- FA15 six-month or 1,500-gallon service life
- FA15 six-month or 1,500-gallon service limit
- FA15 1/4-inch fitting and push-fit quick connection
- FA15 interval
- Brand officialaccessed: 2026-08-30https://www.ispringfilter.com/for-under-sink-ro-syestems-replacement-filters-rcc7ak-rcc7p-ak
- iSpring's RCC7AK/RCC7P-AK replacement category includes FA15
- Manufacturer datasheetaccessed: 2026-08-30https://www.ispringfilter.com/index.php?rt=account/download/startdownload&download_id=237
- RCC-series inlet pressure range and unsafe-water warning
- RCC-series microbiologically unsafe or unknown-quality water restriction
- RCC-series inlet pressure range and pressure-control instructions
- RCC-series low- and high-pressure requirements
- RCC-series unsafe-water restriction
- RCC-series host operation, FA15 stage placement, replacement schedule, pressure limits, and filter-change precautions
- RCC-series filter replacement and flushing instructions
- RCC-series maintenance indicators and leak troubleshooting guidance
- RCC-series replacement indicators and source-water/usage caveat
- Brand officialaccessed: 2026-08-30https://support.ispringfilter.com/open.php?topicId=12
- iSpring states its products carry a one-year manufacturer warranty and require registration to activate it
- Government agencyaccessed: 2026-08-30https://www.cpsc.gov/search?search_api_fulltext=iSpring
- CPSC search for iSpring returned no results on 2026-08-30
- Government agencyaccessed: 2026-08-30https://www.ftc.gov/legal-library/browse/cases-proceedings/172-3033-ispring-water-systems
- FTC administrative Made-in-USA proceeding against iSpring and final consent order dated April 18, 2017
- Government agencyaccessed: 2026-08-30https://www.ftc.gov/news-events/news/press-releases/2019/04/marketer-water-filtration-systems-pay-110000-civil-penalty-deceptive-made-usa-advertisements
- 2019 iSpring settlement of FTC order-violation charges and $110,000 civil penalty
- NSF listingaccessed: 2026-08-30https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=MRO500&Standard=058
- NSF/ANSI 58 listing names MRO500 as a replacement module in four RO500 models
- NSF listingaccessed: 2026-08-30https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=FA15&Standard=058
- NSF/ANSI 58 listing names FA15 as a replacement module in four RCC7AK variants
- IAPMO listingaccessed: 2026-08-30https://pld.iapmo.org/
- Exact iSpring, MRO500, MRO600, and FA15 searches returned no relevant IAPMO R&T result
- WQA listingaccessed: 2026-08-30https://find.wqa.org/find-products#/keyword/iSpring
- iSpring and exact-alias searches returned no WQA result
- Brand officialaccessed: 2026-08-30https://support.ispringfilter.com/kb/faq.php?id=73
- Slow flow and rising TDS can trigger earlier cartridge replacement
- iSpring FAQ says slow flow and increasing TDS can call for earlier replacement
- iSpring publishes stage-specific schedules and says water quality and use affect timing
Cite this page
TapWaterData Editorial. "iSpring Filter Replacement: Schedule & Cert Check." TapWaterData, verified 2026-08-30. https://www.tapwaterdata.com/filters/brand/ispring/replacement-filters
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