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Installed under-sink ROUnder-sink reverse osmosis
iSpring RCC7 5-Stage Under-Sink Reverse Osmosis (75 GPD, base)
A budget RO path with NSF DWTU listing for TDS on the base RCC7 model.
Price last checked during our buy audit; current price may differ. Affiliate links.
Best fit
Buyers comparing entry-tier RO systems and comfortable with a value-focused Amazon purchase path.
Not a fit if
Lead-specific claims on the base RCC7; those require model-specific verification.
Certification evidence
This table comes from our product-level certification map, not from a brand-level assumption. We separate verified third-party claims from caveated manufacturer-stated claims.
| Standard | Claim scope | Status |
|---|---|---|
| NSF/ANSI 58 | Reverse Osmosis Drinking Water Treatment Systems — Plumbed-In to Separate Tap (base RCC7, Taiwan facility) | Verified |
Verified reductions / claims
- NSF/ANSI 58: TDS