Pure Alkaline Filter

Water Systems / Add Ons
ADD ONS

Pure Alkaline Filter

Remineralization for reverse-osmosis drinking water.

This inline cartridge adds calcium and magnesium after the RO membrane. It is designed to give finished drinking water a fuller taste and to balance the character of water after dissolved minerals have been removed.

Best for: RO users who prefer remineralized drinking water
Inline alkaline remineralization filter

WHAT YOU GET

Features

  • Adds calcium and magnesium after RO
  • Designed to improve drinking-water taste
  • Installs inline after the RO membrane
  • Pairs with tankless or tank-based RO
  • Compact cartridge format
  • Straightforward cartridge replacement
RemineralizationInline CartridgePairs With RONSF-Certified Media

Key Specifications

Type Inline remineralization cartridge
Function Adds calcium and magnesium after reverse osmosis
Installation point Inline, after the RO membrane
Pairs with HW800 AlkaPro or 5-stage tank RO
Filter changes Cartridge replacement
System selection is confirmed after assessment. Source-water quality, household demand, available space, pressure, plumbing conditions, and test results may affect the final recommendation.

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SYSTEM CAPABILITIES

What the Alkaline Stage Adds Back

This is a remineralization stage, not a stand-alone contaminant filter. It should be installed after a compatible reverse-osmosis system.

Calcium
Magnesium
A fuller water taste
Improved coffee and tea taste
Post-RO mineral balance
Inline convenience
Works with compatible RO systems
Simple cartridge replacement
Actual performance depends on incoming water quality, flow rate, installation, maintenance, and component condition. Water testing helps determine whether this configuration matches the home.
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