iSpring RCC7Under-sink reverse osmosis · product record
Certified to
58- Maker’s list price
- $231
- Five years
- $1,100
- Water to drain
- 1:3 filtered to waste (with tank)
Listings checked Oct. 4, 2026.
What the listings say
Certified for, and claimed
Certified, by a listing
- TDS Reduction
The listing’s own wording. None of these is a claim for one of the contaminants TapBuff tracks.
Claimed by the maker only
None recorded.
Certification claims we could not find on a listing
- Maker's product page address calls the RCC7 WQA certified; no WQA listing for iSpring found Oct. 4, 2026.
What it costs over five years
Household of 3, 3 gallons a day of drinking and cooking water. Installation not included.
| Item | Replaced | Count | Amount |
|---|---|---|---|
| System, with first media | — | 1 | $231 |
| Sediment filter (FP15) | Every 6 monthsmonth rating | 9 | $171 |
| GAC carbon filter (FG15) | Every 6 monthsmonth rating | 9 | $225 |
| Carbon block filter (FC15) | Every 6 monthsmonth rating | 9 | $198 |
| Post carbon filter (FT15) | Every 6 monthsmonth rating | 9 | $189 |
| RO membrane (MC7) | Every 2 yearsmonth rating | 2 | $86 |
Five-year total$1,100
Per gallon20¢
Worth knowing
NSF lists the RCC7 for TDS reduction only; the maker says the same. Separate NSF entries for the RCC7-BN and RCC7-BLK add lead, fluoride and other claims, so check the model on the box. The maker gives 6 to 12 months for the four carbon and sediment filters and 2 to 3 years for the membrane; the shorter figures are recorded.