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Under-sink reverse osmosis · checked 16 Oct 2026

iSpring RCC7AK, NSF Certified 75 GPD, Alkaline 6-Stage Reverse…

Model RCC7AK · replacement parts FP15, FG15, FC15, FT15, MC7, FA15

Lead:Brand says certifiedPFAS:Brand claim only

Each claim, checked

What the brand says, what a certification listing shows for this model, and where each fact comes from. We read listings; we do not test products.

  • Certified (listing checked)The certifier’s public listing shows this claim for this model.
  • Brand says certifiedThe brand says certified; IAPMO’s listing does not show it. NSF can be checked by hand.
  • Brand claim onlyThe brand claims it without citing a certification.
ContaminantBrand claimStandardCertifierConfirmed?Source, date checked
Lead“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Lead (98.9%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
PFOA“removing up to 99% of over 1,000 harmful contaminants like PFAS (includes PFOA and PFOS), chlorine, fluoride, lead (removes up to 98%), arsenic” brand source––Brand claim — no certification citedbrand pagechecked 16 Oct 2026
PFOSSame statement as for PFOA. brand source––Brand claim — no certification citedbrand pagechecked 16 Oct 2026
Asbestos“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of Asbestos (>99.7%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Barium“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Barium (98.4%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Cadmium“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Cadmium (98.8%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Other“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Chromium (99.2%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Copper“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Copper (97.8%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Fluoride“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Fluoride (97.4%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Selenium“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... Selenium (99.0%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
Total dissolved solids (TDS)“tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of ... TDS (97.9%)” brand sourceNSF/ANSI 58NSF (named by brand)Brand says certified — not found in IAPMO’s listing; check NSFIAPMO searched · check NSF’s listingchecked 16 Oct 2026
ChlorineSame statement as for PFOA. brand source––Brand claim — no certification citedbrand pagechecked 16 Oct 2026
ArsenicSame statement as for PFOA. brand source––Brand claim — no certification citedbrand pagechecked 16 Oct 2026
Mercury“For mercury specifically this RO system water purifier has a rejection rate of 96-98%.” brand source––Brand claim — no certification citedbrand pagechecked 16 Oct 2026
Microplastics“The membrane of this RO filtration system is 0.0001 micron, small enough to filter out most microplastics” brand source––Brand claim — no certification citedbrand pagechecked 16 Oct 2026

Filter changes, by the brand’s numbers

How often iSpring says to replace each part. Real filter life depends on how much water you use and what is in it.

PartBrand says replace everyChanges a yearSource, date checked
FP15 sediment filter (stage 1)6–12 months“FP15 Sediment Filter: every 6-12 months”1–2brand sourcechecked 16 Oct 2026
FG15 granular activated carbon filter (stage 2)6–12 months“FG15 Granular Activated Carbon Filter: every 6-12 months”1–2brand sourcechecked 16 Oct 2026
FC15 carbon block filter (stage 3)6–12 months“FC15 Carbon Block Filter: every 6-12 months”1–2brand sourcechecked 16 Oct 2026
MC7 RO membrane (stage 4)2–3 years“MC7 RO Membrane: every 2-3 years”1 every 2–3 yearsbrand sourcechecked 16 Oct 2026
FT15 post-carbon filter (stage 5)6–12 months“FT15 Post-Carbon Filter: every 6-12 months”1–2brand sourcechecked 16 Oct 2026
FA15 alkaline remineralization filter (stage 6)6–12 months“FA15 Alkaline Filter: every 6-12 months”1–2brand sourcechecked 16 Oct 2026

Certification listings found

No IAPMO R&T listing matched this model when we searched on 16 Oct 2026.

Check it yourself

NSF’s and WQA’s terms don’t allow automated lookups, so these links open their public listings for this model:

What the brand says about certification

  • “iSpring RCC7AK, NSF Certified 75 GPD, Alkaline 6-Stage Reverse Osmosis System” source checked 16 Oct 2026
  • “Certified to NSF/ANSI 58, 6-Stage Alkaline Remineralization Layered Filtration” source checked 16 Oct 2026
  • “The iSpring reverse osmosis system is tested and certified by NSF International against NSF/ANSI to standard 58 for reduction of Asbestos (>99.7%), Barium (98.4%), Cadmium (98.8%), Chromium (99.2%), Copper (97.8%), Fluoride (97.4%), Lead (98.9%), Selenium (99.0%), TDS (97.9%)” source checked 16 Oct 2026
  • “Our NSF Certification validates the entire filtration system's performance, setting us apart from competitors that certify only components or materials.” source checked 16 Oct 2026

Performance data sheet (names NSF International)

How we decide “certified” · All filters