{"product_id":"water-doctor-gf3-800gpd-replacement-filters","title":"Water Doctor GF3 800GPD Replacement Filters – PPC \/ RO \/ 3C","description":"\u003ch2\u003eReplacement filters for the Water Doctor GF3 800GPD RO system\u003c\/h2\u003e\u003cp\u003eThese \u003cstrong\u003eWater Doctor GF3 800GPD Replacement Filters\u003c\/strong\u003e are made for the GF3 tankless reverse osmosis system. Choose the PPC, RO or 3C cartridge based on the filter stage that needs replacement.\u003c\/p\u003e\u003ch3\u003eCompatible system\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWater Doctor GF3 800GPD RO System\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eAvailable cartridges\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePPC cartridge\u003c\/strong\u003e for the pre-filtration stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRO cartridge\u003c\/strong\u003e for the reverse osmosis stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3C cartridge\u003c\/strong\u003e for the final polishing stage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCustomers maintaining an existing GF3 800GPD system\u003c\/li\u003e\n\u003cli\u003eReplacing one cartridge at a time based on usage\u003c\/li\u003e\n\u003cli\u003eMaintaining flow, taste and everyday system performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMaintenance note\u003c\/h3\u003e\u003cp\u003eReplacement timing depends on household usage, water conditions and system indicators. Use genuine Water Doctor GF3 cartridges for proper fit.\u003c\/p\u003e\u003ch3\u003eBefore ordering\u003c\/h3\u003e\u003cp\u003ePlease confirm your system model is GF3 800GPD before purchasing. These filters are not the same as COMO-R700 or COMO-R1000 cartridges.\u003c\/p\u003e","brand":"Water Doctor Canada Inc.","offers":[{"title":"PPC","offer_id":51965162881329,"sku":"GF3800RPPC","price":70.0,"currency_code":"CAD","in_stock":true},{"title":"RO","offer_id":51965162914097,"sku":"GF3800RRO","price":185.0,"currency_code":"CAD","in_stock":true},{"title":"3C","offer_id":51965162946865,"sku":"GF3800R3C","price":70.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/0850\/5905\/files\/51cg5PJAEIL._SL1500.jpg?v=1761240225","url":"https:\/\/shop.waterdoctor.ca\/products\/water-doctor-gf3-800gpd-replacement-filters","provider":"Water Doctor Canada Inc.","version":"1.0","type":"link"}