{"product_id":"onga-starite-tank-oring-p21-p25-702223","title":"Onga Sta-Rite Tank O-Ring (P21\/P25) – 702223 \/ SR35505-1358","description":"\u003cp\u003eGenuine \u003cstrong\u003eOnga Sta-Rite Tank O-Ring\u003c\/strong\u003e for the P21 and P25 sand filters — SKU \u003cstrong\u003e702223\u003c\/strong\u003e, old part number \u003cstrong\u003eSR35505-1358\u003c\/strong\u003e. This large rubber O-ring seals the multiport valve to the sand filter tank body. A worn or cracked tank O-ring causes water to leak from the joint between the valve and the tank. Replacing this O-ring restores a watertight seal and maintains correct system pressure.\u003c\/p\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOnga Pantera P21 sand filter — multiport valve to tank connection\u003c\/li\u003e\n\u003cli\u003eOnga Pantera P25 sand filter — multiport valve to tank connection\u003c\/li\u003e\n\u003cli\u003eSta-Rite multiport valves\u003c\/li\u003e\n\u003cli\u003eOnga Pantera multiport valves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Onga (Pentair)\u003c\/li\u003e\n\u003cli\u003eSKU: 702223\u003c\/li\u003e\n\u003cli\u003eOld part number: SR35505-1358\u003c\/li\u003e\n\u003cli\u003eBarcode: 698343\u003c\/li\u003e\n\u003cli\u003eMaterial: rubber\u003c\/li\u003e\n\u003cli\u003eGenuine Onga spare part\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eHow do I know if this O-ring needs replacing?\u003c\/h3\u003e\n\u003cp\u003eIf water is leaking from the joint between the multiport valve and the top of the sand filter tank on your Onga P21 or P25, the tank O-ring is the most likely cause. Turn off the pump and relieve system pressure, then remove the multiport valve and inspect the O-ring for cracks, flattening, or deformation. Replace if any damage is visible.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between part numbers 702223 and SR35505-1358?\u003c\/h3\u003e\n\u003cp\u003eBoth numbers refer to the same O-ring. \u003cstrong\u003e702223\u003c\/strong\u003e is the current Onga\/Pentair part number. \u003cstrong\u003eSR35505-1358\u003c\/strong\u003e is the older Sta-Rite part number used in earlier documentation and some supplier catalogues. Either number can be used to identify this part.\u003c\/p\u003e\n\n\u003ch3\u003eShould I lubricate the O-ring when fitting it?\u003c\/h3\u003e\n\u003cp\u003eYes — apply a small amount of silicone-based O-ring lubricant (not petroleum-based grease) to the O-ring before fitting. This helps the O-ring seat correctly, prevents pinching during assembly, and extends its service life.\u003c\/p\u003e","brand":"Onga","offers":[{"title":"Default Title","offer_id":45288589263123,"sku":"702223","price":43.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/0591\/1827\/products\/Onga-Starite-Tank-Oring_59f57a83-6735-4962-845b-1a770ec0210e.jpg?v=1684893345","url":"https:\/\/poolshop.com.au\/products\/onga-starite-tank-oring-p21-p25-702223","provider":"Pool Shop Australia","version":"1.0","type":"link"}