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Rainsoft 21179 Compatible RO Filter Kit with Membrane
1-Year Filter Replacement Kit with RO Membrane for RainSoft 21179 Reverse Osmosis System
- STAGE 1 - 1x Carbon Block Pre Filter (OMB934-5M) - Replace every 6-12 months or as needed
- STAGE 2 - 1x RO Membrane TFC 50 GPD (TFC-RS9-50) - Replace every 24 months
- STAGE 3 - 1x Carbon Block Post Filter (OMB934-1M) - Replace every 6-12 months or as needed
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.