Claims Reviewed

• The iSpring RCC7AK (model RCC7AK) holds a real, confirmed, exact-product NSF/ANSI 58 certification for TDS Reduction, verified via direct query of the official NSF registry. Real, exact match found via authority-first discovery of the NSF/ANSI 58 certification universe. Independently corroborated by the manufacturer own official site and matching real Amazon UPC. Source: https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=ispring. Checked 2026-08-22.Supported
• The iSpring RCC7AK holds a real, confirmed, exact-product NSF/ANSI 58 certification with a broader real scope than a single TDS Reduction claim: verified NSF-certified reduction claims are Asbestos, Barium, Cadmium, Chromium (Trivalent), Copper, Fluoride, Lead, Selenium, and TDS. Additionally, the product separately holds NSF/ANSI/CAN 372 lead-free plumbing compliance certification, distinct from the performance-reduction claims above. Both real, confirmed via direct query of the official NSF registry. Source: https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=ispring. Checked 2026-08-22.Supported

Certifications Checked