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RainSoft 21179 Compatible RO Filter Kit (Membrane Sold Separately)
1-Year Filter Replacement Kit for RainSoft 21179 Reverse Osmosis System (RO Membrane Sold Separately)
- STAGE 1 - 1x Carbon Block Pre Filter (OMB934-5M) - Replace Every 12 Months
- STAGE 2 - 0x (RO Membrane TFC-RS9-50 Sold Separately or Included with Replacement Kit YSM-RS21179) - Replace Every 24 Months
- STAGE 3 - 1x Carbon Block Post Filter (OMB934-1M) - Replace Every 12 Months
Note these filters are high-quality replacement filters for the Rainsoft 21179 RO system and not genuine Rainsoft parts.
Note: If your Rainsoft reverse osmosis system is from 2013 or newer, it most likely is the Ultrefiner II. The Ultrefiner II requires proprietary filters that must be purchased from a Rainsoft dealer. Conversion kits to generic non-OEM replacement filters are available.
Filters may need to be replaced more often than indicated depending on incoming water contaminant levels and volume of water being treated.