{"product_id":"jandyproseriestankoringr0357800jndr0357800","title":"Jandy Pro Series Tank O-Ring | R0357800","description":"\u003cdiv\u003e\n\u003ch2\u003eJandy R0357800 – Filter Tank O-Ring\u003c\/h2\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Jandy R0357800 is a genuine replacement O-ring designed for filter tank assemblies in the CV, CL, DEV and DEL series. It ensures a reliable, watertight seal between the tank body and lid, helping maintain system pressure and prevent leaks.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits Jandy CV and CL series cartridge filters (models such as CV340, CV460, CV580; CL340, CL460, CL580).\u003c\/li\u003e\n\u003cli\u003eCompatible also with Jandy DEV and DEL series D.E. filters (DEV48, DEV60; DEL48, DEL60).\u003c\/li\u003e\n\u003cli\u003eHigh-quality elastomer material crafted for pool and spa chemical exposure.\u003c\/li\u003e\n\u003cli\u003eCritical part for maintaining system integrity—helps avoid air ingression, leaks and pressure loss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: R0357800\u003c\/li\u003e\n\u003cli\u003eType: Tank body \/ lid O-ring\u003c\/li\u003e\n\u003cli\u003eMaterial: Chemical-resistant elastomer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Installation Notes\u003c\/h3\u003e\n\u003cp\u003eThis O-ring is intended for use in Jandy CV\/CL cartridge filter tanks and DEV\/DEL series D.E. filters. Before installing, verify the filter model number and ensure the tank body and lid seating surfaces are clean and undamaged. A proper seal ensures optimal filtration performance.\u003c\/p\u003e\n\u003ch3\u003eInstallation Instructions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTurn off the pump and relieve pressure in the filter system.\u003c\/li\u003e\n\u003cli\u003eRemove the filter lid and lift out the old O-ring.\u003c\/li\u003e\n\u003cli\u003eClean the sealing surfaces thoroughly—remove dirt, debris or residue.\u003c\/li\u003e\n\u003cli\u003ePlace the new R0357800 O-ring in the groove, ensuring it sits evenly.\u003c\/li\u003e\n\u003cli\u003eReinstall the lid, restore circulation and monitor for proper sealing and pressure stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTroubleshooting \u0026amp; Maintenance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak or drip at lid seam:\u003c\/strong\u003e Check whether the O-ring is seated correctly, inspect for damage or misalignment in the lid or tank flange.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir bubbles in system or loss of prime:\u003c\/strong\u003e A compromised lid seal could allow air ingress—replace the O-ring if worn or hardened.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard or brittle O-ring:\u003c\/strong\u003e If the old O-ring is flattened, cracked or chemical‐damaged, replacement is recommended immediately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaintenance Tip\u003c\/h3\u003e\n\u003cp\u003eInspect the O-ring each service interval—especially when performing filter maintenance or cartridge replacement. Keeping the seal in good condition helps extend filter service life, maintain proper flow, and avoid unexpected downtime.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Jandy","offers":[{"title":"Default Title","offer_id":52335999811900,"sku":"R0357800","price":47.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/jandy-pro-series-tank-o-ring-r0357800-pool-filter-parts-9325970.jpg?v=1763067236","url":"https:\/\/aquapoolsupply.com\/products\/jandyproseriestankoringr0357800jndr0357800","provider":"Aqua Pool Supply","version":"1.0","type":"link"}