{"product_id":"watts-pwfpk4kc4-ro-annual-replacement-filter-pack-4-pack","title":"Watts pwfpk4kc4 Ro Annual Replacement Filter Pack 4 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WATTS pwfpk4kc4 is a four-stage annual replacement filter pack designed for Kwik-Change reverse osmosis systems. The pack includes four components: a red-label sediment filter, a yellow-label carbon block filter, a 60-gallon-per-day reverse osmosis membrane, and a blue-label granular activated carbon (GAC) post-filter. Together, these stages target sediment, chlorine, odors, and a broad spectrum of dissolved contaminants. The sediment filter is rated for replacement every 6 months or every 1,350 gallons. The semi-permeable RO membrane reduces total dissolved solids and a wide range of chemical and biological contaminants down to 1\/10,000 of a micron. Installation is handled by licensed plumbers or water treatment professionals.\u003c\/p\u003e\u003cp\u003eThis filter pack is suited for residential reverse osmosis applications where annual maintenance is required. The Kwik-Change format is designed to simplify cartridge replacement, reducing service time compared to standard sump-style housings. The pack covers all four filtration stages in a single order, making it practical for scheduled preventive maintenance calls. The carbon block stage addresses chlorine taste and odor, while the post-carbon GAC stage provides final polishing before the water reaches the distribution point.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFour-stage annual pack covers sediment prefiltration, carbon block, RO membrane, and GAC post-filtration in one kit\u003c\/li\u003e\n\u003cli\u003eSediment filter rated for 6-month or 1,350-gallon service intervals\u003c\/li\u003e\n\u003cli\u003e60-gallon-per-day RO membrane capacity\u003c\/li\u003e\n\u003cli\u003eReduces total dissolved solids, lead, arsenic, fluoride, perchlorate, chromium, copper, barium, cadmium, nitrates, radium 226\/228, turbidity, and protozoan cysts including giardia and cryptosporidium\u003c\/li\u003e\n\u003cli\u003eCarbon block stage reduces chlorine and objectionable tastes and odors\u003c\/li\u003e\n\u003cli\u003eLead-free construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style annual replacement pack for Kwik-Change four-stage reverse osmosis systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eFilter pack replacement should be performed by a licensed plumber or qualified water treatment technician. Shut off the feed water supply and depressurize the system before removing any filter cartridges. Follow the manufacturer-specified replacement intervals to maintain system performance and contaminant reduction claims. Dispose of spent cartridges in accordance with local regulations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Four-Stage RO Annual Replacement Filter Pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Types Included\u003c\/strong\u003e: Sediment, Carbon Block, RO Membrane, Granular Activated Carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Reverse Osmosis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane Capacity\u003c\/strong\u003e: 60 gallons per day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSediment Filter Service Interval\u003c\/strong\u003e: 6 months or 1,350 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating (Membrane)\u003c\/strong\u003e: 1\/10,000 of a micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduction Claims\u003c\/strong\u003e: Total Dissolved Solids, Lead, Arsenic, Fluoride, Perchlorate, Chromium (Tri and Hex), Copper, Barium, Cadmium, Nitrates, Radium 226\/228, Turbidity, Giardia, Cryptosporidium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Free\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity\u003c\/strong\u003e: 4 filters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WATTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: pwfpk4kc4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WATTS","offers":[{"title":"Default Title","offer_id":51150405206322,"sku":"PWFPK4KC4","price":206.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305987454.jpg?v=1778611394","url":"https:\/\/voomisupply.com\/products\/watts-pwfpk4kc4-ro-annual-replacement-filter-pack-4-pack","provider":"Voomi Supply","version":"1.0","type":"link"}