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iSpring Water Filters

iSpring is a budget-to-mid-tier reverse-osmosis specialist with 14 NSF/ANSI 58 certifications, but only the finish-variant SKUs (BLK/BN) actually carry the broad lead, fluoride, and arsenic claim set the brand markets across the whole line.

Best for

  • Households that want a DIY under-sink RO system at $220-$350
  • Buyers who want remineralized RO water (the RCC7AK alkaline stage)
  • First-time RO buyers who are fine with a tank-based system

Not recommended for

  • Households that need NSF/ANSI 53 lead reduction in a non-RO format (iSpring has no NSF/ANSI 53 certifications)
  • Buyers who want certified PFAS removal — no iSpring SKU holds NSF/ANSI 401 or P473
  • Renters or homes without under-sink plumbing access
Mid tier — typically $200–$500
Jump to filters
  • Certs:NSF/ANSI 58
  • 14 SKUs
  • $220–$550

Certification Reality: What's Actually Tested

This table shows the NSF/IAPMO/WQA-listed certifications for each iSpring SKU we tracked, alongside the contaminants the brand markets but which do not appear on the third-party listing. Green chips are third-party verified; amber chips are marketing claims without a corresponding listing. Every row links to the live certifier database so you can verify the listed claim set yourself.

RCC7

RCC7 (5-stage RO, base)

Standards held

Performance

NSF/ANSI 58

What’s certified

  • Total Dissolved Solids

Brand claims but NOT certified

  • Lead
  • Fluoride
  • Arsenic
  • PFOA
  • PFOS

RCC7 marketing claims removal of lead, fluoride, arsenic, and PFAS, but the NSF/ANSI 58 certification for this base SKU covers only TDS. The finish-variant SKUs (RCC7-BLK, RCC7-BN) are certified for the broader contaminant set; the plain RCC7 is not.

Read more

NSF listing

View NSF listing

RCC7AK

RCC7AK (6-stage RO with alkaline, base)

Standards held

Performance

NSF/ANSI 58

What’s certified

  • Total Dissolved Solids

Brand claims but NOT certified

  • Lead
  • Fluoride
  • Arsenic
  • PFOA
  • PFOS

Same gap as the RCC7: marketing implies broad contaminant removal, but the NSF/ANSI 58 certification covers only TDS. The alkaline remineralization stage improves taste and adjusts pH, but it does not extend the certified scope.

Read more

NSF listing

View NSF listing

RCC7-BLK

RCC7-BLK (5-stage RO, black faucet variant)

Standards held

Performance

NSF/ANSI 58

What’s certified

  • Total Dissolved Solids
  • Lead
  • Fluoride
  • Asbestos
  • Barium
  • Cadmium
  • Chromium (Trivalent)
  • Copper
  • Selenium

Brand claims but NOT certified

  • PFOA
  • PFOS
  • Chromium-6
Why these aren’t certified ↓
  • PFOA
  • PFOS
  • Chromium-6 (Hexavalent)

NSF listing

View NSF listing

RCC7AK-BLK

RCC7AK-BLK (6-stage RO with alkaline, black faucet)

Standards held

Performance

NSF/ANSI 58

What’s certified

  • Total Dissolved Solids
  • Lead
  • Fluoride
  • Asbestos
  • Barium
  • Cadmium
  • Chromium (Trivalent)
  • Copper
  • Selenium

Brand claims but NOT certified

  • PFOA
  • PFOS
  • Chromium-6
Why these aren’t certified ↓
  • PFOA
  • PFOS
  • Chromium-6 (Hexavalent)

NSF listing

View NSF listing

RO500-BN

RO500-BN (tankless 500 GPD, brushed nickel)

Standards held

Performance

NSF/ANSI 58

What’s certified

  • Total Dissolved Solids

Brand claims but NOT certified

  • Lead
  • Fluoride
  • Arsenic
  • PFOA
  • PFOS

The premium tankless RO500 line is iSpring's most heavily marketed (smart TDS monitor, compact form factor), yet the NSF/ANSI 58 certifications on the RO500 family cover only TDS reduction. Buyers paying $530+ for a tankless system should not assume certified lead or PFAS removal without specific cartridge upgrades.

Read more

NSF listing

View NSF listing

Check Certification for a iSpring Filter

This widget shows the third-party-listed certifications for iSpring SKUs only. Type a model number to filter the list below — every result links to the full breakdown. To search across every brand we track, use the global certification tool.

NSF/ANSI 5814 models

Listings as of Jun 4, 2026.

About iSpring

iSpring's RO systems are NSF-certified — but most only for TDS, not the lead and fluoride the marketing implies. It's a privately-held US brand based in Cumming, Georgia, built almost entirely around under-sink reverse osmosis.

Three core families: the RCC7 (5-stage), the RCC7AK (6-stage with alkaline remineralization), and the RO500 (tankless, 500 GPD). iSpring sells mostly direct through Amazon and 123filter.com — the RCC7AK has 17,000+ Amazon ratings at 4.7 stars, one of the most-reviewed under-sink RO systems in the US.

The catch: iSpring holds 14 NSF/ANSI 58 listings, but only the finish-variant SKUs (BLK, BN, UVBLK, UVBN) carry the broad lead/fluoride/arsenic claim set. Base SKUs are listed for TDS reduction only.

Founded:2006
Headquarters:Cumming, Georgia, USA

Ownership history

  1. 2006

    Founded as iSpring Water Systems LLC in the Greater Atlanta area, focused on home reverse-osmosis systems.

RCC7 (5-stage RO)

The entry-level under-sink system.

  • Certified: NSF/ANSI 58, but the base SKU lists TDS reduction only.
  • Specs: 5-stage, 75 GPD output.
  • Price: ~$220.

RCC7AK (6-stage RO with alkaline)

Adds an alkaline remineralization stage after the RO membrane for taste and pH balance.

  • Certified: NSF/ANSI 58, base SKU TDS only.
  • Price: ~$220-$355 depending on finish.

RCC7-BLK / RCC7-BN / RCC7AK-BLK / RCC7AK-BN (finish variants)

Same RO architecture as the base systems, but the broader NSF listing.

  • Certified: NSF/ANSI 58 for the broad claim set — lead, fluoride, asbestos, barium, cadmium, chromium (trivalent), copper, selenium, TDS.
  • Note: these are the only iSpring SKUs listed beyond TDS.

RO500 / RO500-BN / RO500-ORB (tankless RO)

The premium tankless line with a real-time TDS monitor.

  • Certified: NSF/ANSI 58, base RO500 listings cover TDS only.
  • Specs: 500 GPD output.
  • Price: ~$530-$550.

Replacement cartridges

Pre-filters (FP15, FG15), carbon stages (FC15), RO membranes (FT15), and alkaline (MC7) cartridges sized for the RCC7/RCC7AK family.

Designed and assembled in the US, with imported sub-components. iSpring assembles its RO systems at 2480 Industrial Park Boulevard, Cumming, GA 30041.

Sub-components (pre-filters, membranes, housings) come from contract suppliers; final assembly, QA, and NSF compliance testing happen in Georgia. iSpring doesn't publish which parts are US-made vs imported.

iSpring Water Filter Collection (7)

Affiliate Disclosure: We earn affiliate commissions from purchases made through our links at no extra cost to you. This supports our testing and keeps our content free. Learn More

7 filters

BEST HIGH TDS WATER
RCC7

iSpring Water Systems LLC

RCC7

(17,660 reviews)
219.95

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

21.04 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 21.04 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 1 contaminants:

Total Dissolved Solids
View Details
BEST LEAD REMOVAL
RCC7-BLK

iSpring Water Systems LLC

RCC7-BLK

(17,660 reviews)
234.62

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

25.41 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 25.41 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 9 contaminants:

Asbestos, Barium, Cadmium, Chromium (Total), Copper
+4 more

Fluoride, Lead, Selenium, Total Dissolved Solids

View Details
BEST LEAD REMOVAL
RCC7AK-BLK

iSpring Water Systems LLC

RCC7AK-BLK

(17,660 reviews)
251.99

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

25.41 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 25.41 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 9 contaminants:

Asbestos, Barium, Cadmium, Chromium (Total), Copper
+4 more

Fluoride, Lead, Selenium, Total Dissolved Solids

View Details
BEST LEAD REMOVAL
RCC7AK-UVBLK

iSpring Water Systems LLC

RCC7AK-UVBLK

(17,660 reviews)
354.99

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

25.41 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 25.41 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 9 contaminants:

Asbestos, Barium, Cadmium, Chromium (Total), Copper
+4 more

Fluoride, Lead, Selenium, Total Dissolved Solids

View Details
BEST HIGH TDS WATER
RO500-BN

iSpring Water Systems LLC

RO500-BN

(1,163 reviews)
549.99

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

500 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 500 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 1 contaminants:

Total Dissolved Solids
View Details
BEST HIGH TDS WATER
RO500AK-BN

iSpring Water Systems LLC

RO500AK-BN

(1,615 reviews)
524.98

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

500 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 500 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 1 contaminants:

Total Dissolved Solids
View Details
BEST HIGH TDS WATER
RCC7AK-UV

iSpring Water Systems LLC

RCC7AK-UV

(1,760 reviews)
335.98

NSF Certified:

Performance

NSF/ANSI 58

Daily Production

21.04 gpd

Highlights:

  • NSF-58 certified reverse osmosis system
  • 21.04 GPD production capacity
  • Reduces total dissolved solids (TDS) for purer water

Removes 1 contaminants:

Total Dissolved Solids
View Details

Which iSpring Filter Is Right for You?

We mapped each iSpring SKU’s NSF-listed certifications against the 10 contaminants people search for most. Where iSpring doesn’t have a certified SKU, we say so.

Lead
Best pick: RCC7-BLK (5-stage RO, black faucet variant) — certified for Lead (iSpring).
PFAS
Not the right choice if PFAS is your priority — no certified iSpring SKU for PFAS. Consider an NSF/ANSI 53-listed filter.
Fluoride
Best pick: RCC7-BLK (5-stage RO, black faucet variant) — certified for Fluoride (iSpring).
Arsenic
Not the right choice if Arsenic is your priority — no certified iSpring SKU for Arsenic. Consider an NSF/ANSI 53-listed filter.
Nitrate
Not the right choice if Nitrate is your priority — no certified iSpring SKU for Nitrate. Consider an NSF/ANSI 53-listed filter.
Chromium-6
Not the right choice if Chromium-6 is your priority — no certified iSpring SKU for Chromium-6. Consider an NSF/ANSI 53-listed filter.
Mercury
Not the right choice if Mercury is your priority — no certified iSpring SKU for Mercury. Consider an NSF/ANSI 53-listed filter.
Atrazine
Not the right choice if Atrazine is your priority — no certified iSpring SKU for Atrazine. Consider an NSF/ANSI 53-listed filter.
Chloroform
Not the right choice if Chloroform is your priority — no certified iSpring SKU for Chloroform. Consider an NSF/ANSI 53-listed filter.
Cysts
Not the right choice if Cysts is your priority — no certified iSpring SKU for Cysts. Consider an NSF/ANSI 53-listed filter.

How iSpring Compares

iSpring RCC7AK vs Waterdrop G3P800

Format

iSpring RCC7AK

Tank-based 6-stage RO

Waterdrop G3P800

Tankless 7-stage RO

Price (typical MSRP)

iSpring RCC7AK

~$220

Waterdrop G3P800

~$849

Daily output

iSpring RCC7AK

75 GPD

Waterdrop G3P800

800 GPD

Waste ratio

iSpring RCC7AK

1:2 (standard)

Waterdrop G3P800

1:1 (efficient)

Remineralization

iSpring RCC7AK

Yes (alkaline stage)

Waterdrop G3P800

Optional add-on

NSF/ANSI 58 certified claims

iSpring RCC7AK

TDS only (base SKU)

Waterdrop G3P800

TDS (per NSF certification)

Best for

iSpring RCC7AK

Value seekers, first-time RO buyers

Waterdrop G3P800

Cabinet-constrained kitchens, premium buyers

Bottom line: same certified scope, very different price. Both are NSF/ANSI 58 listed for TDS at the base level; the gap is form factor and cost.

  • Pick iSpring RCC7AK if price matters — ~$220 vs ~$849, roughly 4× cheaper for comparable certified scope.
  • Pick Waterdrop G3P800 if you have tight cabinets — tankless form factor and 800 GPD vs 75.

Sources for facts in this comparison

  1. NSF listingaccessed: 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    RCC7AK base SKU certified claim is TDS only · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  2. NSF listingaccessed: 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    Waterdrop NSF/ANSI 58 certifications · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  3. Brand officialaccessed: 2026-05-20
    https://www.amazon.com/dp/B005LJ8EXU?tag=waterfilte0f3-20

    RCC7AK MSRP and daily-production figures

iSpring RCC7AK vs APEC ROES-50

Format

iSpring RCC7AK

6-stage with alkaline

APEC ROES-50

5-stage basic RO

Price

iSpring RCC7AK

~$220

APEC ROES-50

~$200

Daily output

iSpring RCC7AK

75 GPD

APEC ROES-50

50 GPD

Remineralization

iSpring RCC7AK

Yes

APEC ROES-50

No

Warranty (standard)

iSpring RCC7AK

1 year

APEC ROES-50

2 years

NSF/ANSI 58 certified claims (base SKU)

iSpring RCC7AK

TDS only

APEC ROES-50

TDS only

Assembly

iSpring RCC7AK

Assembled in USA (Cumming, GA)

APEC ROES-50

Assembled in USA

Bottom line: near-identical systems — pick on warranty vs taste. Both are ~$200-$220 with NSF/ANSI 58 TDS-only listed scope, and both leave PFAS and the broader set uncertified at this price.

  • Pick iSpring RCC7AK if you want the alkaline remineralization stage for taste.
  • Pick APEC ROES-50 if you want the longer warranty (2 years vs 1) and slightly lower annual filter cost.

Sources for facts in this comparison

  1. NSF listingaccessed: 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    RCC7AK certified claim is TDS only · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  2. NSF listingaccessed: 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    APEC ROES-50 NSF/ANSI 58 certified claim scope · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  3. Brand officialaccessed: 2026-05-20
    https://www.123filter.com/about-ispring-water-systems-aboutus/

    iSpring assembly in Cumming, GA

Looking for a broader comparison? See our full reverse osmosis filter roundup.

Explore other brands: APEC Water Systems, AquaBliss, Aquaboon, AquaTru, Kind Water Systems, Multipure, LifeStraw, Whirlpool, Solventum, SpringWell Water Filtration Systems, Pentair, Omnipure, Pelican Water, Crystal Quest, Hydroviv, Brondell, Bluevua, Berkey, ZeroWater, Aquasana, Express Water, Frizzlife, Epic Water Filters, Culligan, Clearly Filtered, Waterdrop, PUR, Doulton, Brita, and Propur.

What Reddit Says About iSpring

These quotes are paraphrased — not verbatim — from public Reddit threads. Each card links to the original thread so you can read the discussion in context and verify the sentiment for yourself.

r/waterfiltersPositive
“Three years on the RCC7AK and still pulling clean readings; the only annoyance was a slow drip at the saddle valve I had to retighten after the first month.”
View thread
r/PlumbingPositive
“Installation took maybe an hour with the saddle valve and faucet. Instructions are clear; just don't overtighten the fittings.”
View thread
r/HomeImprovementNegative
“Asked iSpring support whether the RCC7 is NSF-certified for PFAS removal — they confirmed the certification only covers TDS. Disappointing given how the Amazon page reads.”
View thread

Quotes verified on 2026-05-20.

iSpring Customer Reviews Summary

75,178Total Reviews
4.6
Average

What Customers Love

  • Most people can install it themselves in under 2 hours for an under-sink RO.
  • The alkaline remineralization (AK SKUs) noticeably improves taste versus basic RO.
  • Filter refills are cheaper than most competing RO brands.
  • Customer support out of Cumming is responsive.

Common Concerns

  • The PFAS marketing language does not match the actual NSF/ANSI 58 certified claim set.
  • The tank takes up under-sink cabinet space (the tankless RO500 line solves this at higher cost).
  • Some units arrive with minor fitting leaks that need retightening.
  • Filter replacement names are confusing for first-time RO owners.

The RCC7AK is one of the most-reviewed under-sink RO systems on Amazon, with 17,000+ ratings at a 4.7-star average.

The tankless RO500 series averages 4.6 stars despite its $530+ price, so buyers who pay for the upgrade are generally happy with it.

No iSpring system on Amazon currently sits below a 4.5-star average, which points to consistent quality across the product line.

Sources for iSpring review data

  1. Amazon reviewaccessed: 2026-05-20
    https://www.amazon.com/dp/B005LJ8EXU?tag=waterfilte0f3-20

    RCC7AK Amazon rating and review count (17,000+ at 4.7 stars)

  2. Amazon reviewaccessed: 2026-05-20
    https://www.amazon.com/dp/B09RRV8VNK?tag=waterfilte0f3-20

    RO500 tankless Amazon rating aggregate

Review data aggregated from verified Amazon purchases. Individual results may vary.

About iSpring Marketing Language

Some claims on iSpring packaging and product pages are frequently confused with what the underlying third-party certifications actually cover. The note below documents one such mismatch with primary-source citations so you can verify the specifics yourself.

iSpring markets a broad lead, fluoride, and arsenic claim set across the line, but only the BLK/BN finish variants are actually certified for it.

The same RO system can be certified for TDS only or for the broad claim set — the difference is the finish variant, not the filtration. iSpring's product pages and Amazon listings describe its RO systems as removing 1,000+ contaminants including lead, fluoride, and arsenic. The NSF/ANSI 58 listings are more nuanced.

  • TDS only: the base SKUs — RCC7, RCC7AK, RO500-BN, RO500-ORB, RO500AK-BN, RO500AK-ORB.
  • Broad claim set: the finish variants — RCC7-BLK, RCC7-BN, RCC7AK-BLK, RCC7AK-BN, RCC7AK-UVBLK, RCC7AK-UVBN, RCC7UV.

Reverse osmosis does mechanically reduce many contaminants beyond TDS. But without a finish-variant listing or NSF/ANSI 401 certification, those reductions aren't third-party verified on the specific SKU you bought.

Sources

  1. NSF listingaccessed: 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    iSpring NSF/ANSI 58 certifications split between base SKUs (TDS only) and finish variants (broad claim set) · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  2. NSF listingaccessed: 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=401

    No iSpring SKU is certified to NSF/ANSI 401 · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  3. Brand officialaccessed: 2026-05-20
    https://www.amazon.com/iSpring-5-Stage-Prestige-Drinking-Certified/dp/B003XELTTG?tag=waterfilte0f3-20

    Amazon product page markets removal of lead, fluoride, and PFAS for the base RCC7

Verified 2026-05-20.

Frequently Asked Questions About iSpring Water Filters

Yes — 14 NSF/ANSI 58 listings — but what's listed depends on the SKU.

  • Base SKUs (RCC7, RCC7AK, RO500-BN, etc.) — listed for TDS reduction only.
  • Finish-variant SKUs (RCC7-BLK, RCC7-BN, RCC7AK-BLK, RCC7AK-BN, RCC7UV) — listed for the broad set: lead, fluoride, asbestos, barium, cadmium, chromium (trivalent), copper, selenium, and TDS.

No iSpring SKU is on NSF/ANSI 401 (the emerging-contaminants standard covering PFAS, pharmaceuticals, and pesticides). You can search iSpring on the NSF database for the live per-SKU list. Before buying, check your water quality by ZIP code so the certified scope matches your feed water.

Sources: [1]

How We Researched iSpring

Our brand assessments follow a four-tier source ladder. We start with Tier 1 primary sources — NSF International, IAPMO, and WQA certification listings, plus SEC filings and EPA records — to establish what is third-party verified. We then layer in brand-official statements (corporate sites, datasheets, support pages) for context, tier-1 journalism for independent reporting, and community signals (Reddit threads, Amazon reviews) for real-world ownership experience. Every claim on this page traces back to one of the citations below.

Reviewed by TapWaterData Editorial.

Last full review: 2026-05-20 · Next scheduled review: 2027-05-20

All sources (6)

  1. NSF listingAccessed 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    All 14 iSpring NSF/ANSI 58 certifications and their per-SKU claim sets · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  2. NSF listingAccessed 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=401

    Confirms iSpring is absent from the NSF/ANSI 401 certification listing · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  3. Brand officialAccessed 2026-05-20
    https://www.123filter.com/about-ispring-water-systems-aboutus/

    Founding year, Cumming GA HQ, design/assembly facility, replacement interval guidance

  4. Amazon reviewAccessed 2026-05-20
    https://www.amazon.com/dp/B005LJ8EXU?tag=waterfilte0f3-20

    RCC7AK price band, daily output spec, Amazon rating aggregate

  5. NSF listingAccessed 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    Comparison facts for the iSpring-vs-Waterdrop section · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

  6. NSF listingAccessed 2026-05-23
    https://info.nsf.org/Certified/dwtu/Listings.asp?Standard=058

    Comparison facts for the iSpring-vs-APEC section · URL rewritten 2026-05-23: NSF Company= filter broken for our brand names; widened to non-Company-scoped variant per bug-fix plan

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

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