AO Smith membrane-remineralizer replacement kit for reliable RO filtration and remineralization
AO Smith RO membrane closeup highlighting replacement part for contaminant reduction
AO Smith remineralizer component details visible for mineral restoration after RO
AO Smith filter system compatibility notes showing SmartFlow exclusion and drain guidance
AO Smith membrane packaging with clear labeling for quick replacement
AO Smith system-performance test graphic illustrating filtration efficiency and remineralization impact
AO Smith certified spare parts pack ensuring continued contaminant removal

A. O. Smith

A. O. Smith Membrane & Remineralizer Replacements | Replacement RO Membrane & Remineralizer

High-performance tools and home improvement made for confident daily results

$138.61

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Why customers choose TaskHolt Tools

Overview

Enhance your AO Smith water filtration with a dedicated Membrane and Remineralizer Replacement kit designed for The Clean Water Filter with RO Boost (AO-US-RO-4000). This kit is not compatible with SmartFlow Systems, so be sure you’re matching the right setup before purchase.

What it does for your water

Our reverse osmosis approach offers strong filtration, reducing up to 99% of common contaminants such as lead, fluoride, asbestos, chromium, and nitrates. When paired with a remineralizer, the system also reintroduces minerals that RO processing often removes, helping balance taste and mouthfeel for everyday drinking water.

Mineral restoration and water balance

  • Remineralization returns minerals like calcium, magnesium, and potassium to the purified water.
  • The combined membrane and remineralizer help maintain a balanced mineral profile over time.

Longevity and performance

For ongoing performance, plan to replace both components roughly every 12 months. Use only certified, genuine A. O. Smith replacement filters to sustain contaminant removal and preserve system efficiency.

Certifications and installation notes

  • NSF certified to standard 58 for safety and reliability.
  • Does not include a 90-degree elbow to the drain; reuse your existing elbow to connect the remineralizer to the drain line. Do not discard the connector with the old membrane.

FAQ

Q: What does the AO Smith Membrane & Remineralizer Replacements kit include?

A: Replacement RO membrane and remineralizer for The Clean Water Filter with RO Boost (AO-US-RO-4000); not compatible with SmartFlow systems.

Q: How long do the components last and what certifications do they have?

A: Typically about 12 months of use; NSF certified to standard 58 for safety and performance.

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