{"product_id":"pentair-clean-and-clear-plus-520-cartridge-filter-pentair-upper-bulkhead-o-ring-for-2-de-filters-cartridges-192320","title":"Pentair 192320 Upper Bulkhead O-Ring for 2\" DE Filters \u0026 Cartridges – Clean And Clear Plus 520 Cartridge Filter","description":"\u003cdiv class=\"rte\"\u003e\n\u003ch2\u003ePentair 192320 Upper Bulkhead O-Ring for 2\" DE Filters \u0026amp; Cartridges\u003c\/h2\u003e\n\u003cp\u003eOEM Pentair 192320 upper bulkhead O-Ring (2-137 Buna-N 70) for Clean \u0026amp; Clear Plus, FNS, Nautilus filters. Restore leak-free seal.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM Pentair upper bulkhead O-ring\u003c\/li\u003e\n\u003cli\u003eUses Buna-N 70 Shore elastomer for chemical and wear resistance\u003c\/li\u003e\n\u003cli\u003e#2-137 size for 2\" bulkhead sealing in DE and cartridge filters\u003c\/li\u003e\n\u003cli\u003eCompatible with Clean \u0026amp; Clear Plus, FNS \/ FNS Plus, Nautilus filters\u003c\/li\u003e\n\u003cli\u003eRestores reliable, leak-free upper bulkhead seal\u003c\/li\u003e\n\u003cli\u003eLow cost part to maintain filter integrity and reduce pressure loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePentair 192320 Upper Bulkhead O-Ring\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis engineered to provide a durable, leak-resistant seal at the top bulkhead connection of your pool filter. Molded from Buna-N 70 elastomer and sized #2-137 for 2-inch applications, this OEM part is designed to resist chlorine, pool chemicals, and repeated pressure cycles. It fits a range of Pentair filtration systems including Clean \u0026amp; Clear Plus, FNS, FNS Plus, and Nautilus series. When your upper bulkhead shows signs of leaking or degradation, this O-ring is a direct replacement to restore proper sealing and system efficiency.\u003c\/p\u003e\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eLightly lubricate the O-ring with a silicone-based lubricant before installation to ease seating and reduce wear. Always inspect the bulkhead surface for scratches or debris before installing to ensure a tight seal.\u003c\/p\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cp\u003eDepressurize the filter before servicing. Clean both the bulkhead housing and surfaces thoroughly. Apply light silicone lube to the O-ring. Do not overtighten — snug engagement is sufficient.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":46826751426726,"sku":"192320","price":5.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/9698\/1414\/files\/O-409-0_1cec109e-88b6-413b-beb6-4f12d33a4907.png?v=1762806276","url":"https:\/\/kypoolsupply.com\/products\/pentair-clean-and-clear-plus-520-cartridge-filter-pentair-upper-bulkhead-o-ring-for-2-de-filters-cartridges-192320","provider":"Kentucky Pool Supply","version":"1.0","type":"link"}