{"product_id":"pentairwaterpoolandspainc_195004z","title":"Pentair Polyethylene Washer 3\" x 2-3\/8\" | FNS D.E. Filter | 195004Z","description":"\u003ch3\u003eOEM Replacement Washer for Pentair FNS D.E. Filters\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 195004Z is the OEM replacement polyethylene washer for the FNS series D.E. filter lower pipe assembly. If your FNS filter is showing wear or leakage at the lower pipe connection, this washer is the correct service replacement.\u003c\/p\u003e\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThis polyethylene washer seats within the FNS lower pipe assembly, providing a sealing interface that maintains proper water flow and pressure integrity within the filter tank. Replacing a worn or deformed washer restores the assembly's sealing performance and prevents bypass of unfiltered water.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0px; border: 1px solid rgb(204, 204, 204); height: 97.9545px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.5909px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e195004Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5909px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e\u003cstrong\u003eLegacy Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e195004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5909px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003ePolyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.5909px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e3\" x 2-3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5909px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(204, 204, 204); padding: 10px; height: 19.5909px;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFits Into\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eEquipment Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS D.E. Filter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS24\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eVerify fitment before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS D.E. Filter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS36\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eVerify fitment before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS D.E. Filter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS48\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eVerify fitment before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS D.E. Filter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFNS60\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eVerify fitment before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eCompatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, compare the dimensions stamped or printed on your existing washer against the 3\" x 2-3\/8\" specification listed here. FNS filter assemblies were produced across multiple generations, and washer dimensions can vary between model revisions. When the lower pipe assembly is disassembled for service, inspect the lower pipe manifold and any associated O-rings for wear at the same time — replacing worn sealing components together reduces the likelihood of a repeat service visit.\u003c\/p\u003e\n\u003c!-- wft:processed:manual:2026-04-04 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53960099135763,"sku":"195004Z","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-polyethylene-washer-3-x-2-3-8-fns-d-e-filter-195004z.webp?v=1777410740","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_195004z","provider":"Poolaroo","version":"1.0","type":"link"}