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4 Stage Under Sink Complete RO Replacement Filters - With RO Membrane

Regular price $78.00 Sale

RO Unit Filter Replacement Kit with 36 GPD RO Membrane for 4 and 5 Stage Undersink Reverse Osmosis System

These are standard size filters and a 36 GPD membrane that fit undersink


  • STAGE 1 - 1x  Sediment Pre-Filter  - Replace Every 12-24 Months
  • STAGE 2 - 1x  Activated Carbon Block Pre-Filter - Replace Every 12-24 Months
  • STAGE 3 - 1x  RO Membrane TFC 36 GPD - Replace Every 24-48 Months (Option to upgrade up to 75 GPD)
  • STAGE 4 - 1x Inline Carbon Post Filter 2" x 10" - Replace Every 12-24 Months
5 STAGE systems use an extra Activated Carbon and/or remineralizing cartridge.

    * Frequency of Filter replacement depends on the quality of your water and consumption habits. It is recommended to test your water every 6-12 months to ensure your RO system purifies your water adequately to keep contaminants below 50 ppm (parts per million - milligrams over liters). Please use the TDS that came in your box to check TDS levels.