1-Year Compatible Filter Kit with Membrane for RainSoft 21179 Reverse Osmosis System

Description 1-Year Filter Replacement Kit with RO Membrane for RainSoft 21179 Reverse Osmosis System INCLUDES: STAGE 1 - 1x Carbon Block Pre FilterReplace Every 12 Months STAGE 2 - 1x RO Membrane TFC 50 GPD Replace Every 24 Months STAGE 3 - 1x Carbon Block Post Filter - Replace Every 12 Months 2) 5micron carbon filters 1) membrane Filters may need to be replaced more often than indicated depending on incoming water contaminant levels and volume of water being treated.