iSpring RCC7AK vs APEC ROES-50: the iSpring RCC7AK-BN is certified by NSF International to NSF/ANSI 58 for lead, fluoride, and dissolved solids, while the APEC ROES-50 is certified by WQA for dissolved solids (TDS) only. Both are under-sink reverse osmosis systems at a similar price.
The catch: Only the -BN and -BLK versions carry those claims; the plain RCC7AK is certified for TDS only, so check the model before you buy.
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How Do the iSpring RCC7AK and APEC ROES-50 Compare?
Two of the most popular budget under-sink RO systems. Both are certified to NSF/ANSI 58, but for very different claim lists, which is why their scores are far apart. How we score
| # | System | Score | Lead | PFAS | Fluoride | Filter life | Cost per gallon | Price |
|---|---|---|---|---|---|---|---|---|
| 01 | iSpring RCC7AK-BNBest of the two | 3.9 | Certified | Claim | Certified | Pre-filters 6 to 12 mo (maker) | Not rated | $234.99on Amazon › |
| 02 | APEC ROES-50Lowest filter cost | 3.2 | Claim | Claim | Claim | Pre-filters 6 to 12 mo (maker) | Not rated | $179.99on Amazon › |
Certified: Certified by an independent body (named in each pick). Lab test: Tested by a named independent lab, not certified. Claim: The maker's claim, not certified. No: No claim. PFAS means PFOA/PFOS, or Total PFAS where the pick says so.
What Is Each One Certified to Remove?
| Contaminant | iSpring RCC7AK-BN | APEC ROES-50 |
|---|---|---|
| Dissolved solids (TDS) | Certified (NSF International, NSF/ANSI 58) | Certified (WQA, NSF/ANSI 58) |
| Lead | Certified (NSF/ANSI 58) | APEC’s claim, not certified |
| Fluoride | Certified (NSF/ANSI 58) | APEC’s claim, not certified |
| Asbestos, barium, cadmium, chromium, copper, selenium | Certified (NSF/ANSI 58) | No claim |
| PFAS | iSpring’s claim, not certified | APEC’s claim, not certified |
| Arsenic | Not certified | APEC’s claim, not certified |
iSpring: NSF International listing for the RCC7AK-BN and RCC7AK-BLK (made in Nanjing); the plain RCC7AK (made in Taiwan) is certified for TDS only. APEC: WQA listing for the ROES-50 under NSF/ANSI 58 for TDS, plus NSF/ANSI/CAN 372 for lead-free materials; WQA doesn’t list the ROES-50X.
Are Both Actually Certified?
Both are certified to NSF/ANSI 58, the reverse osmosis standard, but a certification only covers the claims the certifier lists. The iSpring RCC7AK-BN’s listing names lead, fluoride, and several metals. The APEC ROES-50’s names dissolved solids only, so its lead, fluoride, and arsenic figures are APEC’s own. If you want an APEC with certified lead and fluoride reduction, the APEC RO-90 has them.
The Two in Detail
iSpring RCC7AK-BN
The cheapest fully certified under-sink reverse osmosis we found, with an alkaline stage that adds minerals back. Check the model: only the -BN and -BLK versions are certified for lead and fluoride. Filters run about $100 to $140 a year.
APEC ROES-50
Cheap to run, at about $45 to $90 a year in filters, but WQA certifies it for dissolved solids only. For certified lead and fluoride reduction at a similar price, look at the iSpring RCC7AK-BN or APEC's own RO-90.
iSpring or APEC: Which Should You Buy?
Pick the iSpring RCC7AK-BN if
You want certified lead and fluoride reduction from a budget under-sink RO, and you like its alkaline stage, which adds minerals back.
Pick the APEC ROES-50 if
You mainly want lower dissolved solids and the cheapest filters, about $45 to $90 a year.
Consider the APEC RO-90 if
You prefer APEC and want certified lead, fluoride, and arsenic reduction. Our APEC RO-90 review.
Can’t install under the sink?
The AquaTru Carafe is countertop RO certified for lead, fluoride, and PFOA/PFOS, with no plumbing.
Common questions
iSpring RCC7AK or APEC ROES-50: which should I buy?
The iSpring RCC7AK-BN, for most homes: NSF International certifies it for lead, fluoride, and dissolved solids, while WQA certifies the APEC ROES-50 for dissolved solids only. Buy the -BN or -BLK version of the iSpring.
Do they remove fluoride?
The iSpring RCC7AK-BN is certified for fluoride under NSF/ANSI 58. The APEC ROES-50’s fluoride figure is APEC’s own claim. See our fluoride guide.
Do they remove PFAS?
Neither is certified for PFAS; both PFAS figures are the makers’ own. For certified PFOA/PFOS reduction under the sink, see the Waterdrop G3P800 or our PFAS filter guide.
Which costs less to run?
The APEC ROES-50, at about $45 to $90 a year in filters, against about $100 to $140 a year for the iSpring.
Which tastes better?
That’s personal. The iSpring has an alkaline stage that adds minerals back after reverse osmosis; the APEC ROES-50 delivers plain RO water with the minerals removed.
Sources
Prices as of October 14, 2026. Product prices and availability are accurate as of the date/time indicated and are subject to change. As an Amazon Associate we earn from qualifying purchases.