AO Smith Membrane & Remineralizer Replacements for AO-US-RO-4000 Replacements made easy - no

Replacements made easy - no plumber necessary

all metal faucet

RO Membrane and Remineralizer last approximately 12 months

401 & P473

Includes two filters and one membrane

AO Smith Membrane & Remineralizer Replacements for AO-US-RO-4000 Replacements made easy - noReplacement RO Membrane & Remineralizer for AO Smith 4 Stage Reverse Osmosis (AO US RO 4000) Product Features: Replacement RO Membrane & Remineralizer for: The Clean Water Filter with RO Boost (AO US RO 4000). Use only certified, genuine AO Smith replacement filters for continued contaminant removal and system performance. Replacements made easy no plumber necessary. Reverse Osmosis reduces up to 99% of harmful contaminants including lead, fluoride,