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EPDM O-ring seal
seat the cap O-ring properly in the groove
5" diameter) Media Composition Granular activated carbon mixed with food-grade polyphosphate crystals Primary Reduction Chlorine
Primary Target
Proq-550 Reverse Osmosis Filters 1Year Set, 5 Stage Reverse Osmosis Water Fil... Vinyl Tubing EPDM O-ring sealAnnual Replacement Kit PROQ 550 1 Year Filter Set Complete 5 stage replacement cartridge package for PROQ 550 reverse osmosis systems 5 Filter Stages 12 Month Supply OEM Compatible Quick Change This annual filter set includes all cartridges needed to maintain your PROQ 550 undersink reverse osmosis system for one full year. Replace sediment and carbon pre filters at 6 12 months and the RO membrane at 24 36 months depending on water quality and usage.