... .doule o ring Reverse Osmosis Water Filter Housing MODEL NO. GY-PF-PPH001Quantity of 20/40/40HQ650ctn/1300ctn/1507ctn filter cartridgePP,CTO,UDF,GACHousing size10inchWorking ... main products include water purifiers, water softeners, water treatment equipment and RO parts, like pumps, membranes, filter cartridges, faucets, filter housings and others Reverse Osmosis Water Filter Housing