{"product_id":"aladdin-o-486-sta-rite-filter-tank-o-ring","title":"Aladdin O-486-0 25 in. System:3 Filter Tank O-Ring – 24850-0009","description":"\u003ch2\u003eCorrect 25-Inch Tank O-Ring for Select Sta-Rite System:3 Filters\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAladdin O-486-0 replacement tank O-ring for the 25-inch System:3 filter platform.\u003c\/li\u003e\n\u003cli\u003eVerified fitment includes Sta-Rite\/Pentair System:3 models S8M150, S8D110, and S8S70.\u003c\/li\u003e\n\u003cli\u003eReplaces Pentair\/Sta-Rite part number 24850-0009.\u003c\/li\u003e\n\u003cli\u003eSeals the main filter tank joint when the correct 25-inch System:3 configuration is used.\u003c\/li\u003e\n\u003cli\u003eAladdin replacement part; not a Pentair OEM-branded O-ring.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuick Product Summary\u003c\/h2\u003e\u003cp\u003eThe Aladdin O-486-0 is the replacement tank O-ring used on select 25-inch Sta-Rite\/Pentair System:3 pool filters. Aladdin lists this part for System:3 models S8M150, S8D110, and S8S70 and identifies Pentair\/Sta-Rite 24850-0009 as the corresponding OEM reference number.\u003c\/p\u003e\u003cp\u003eThis is the large tank sealing O-ring used at the filter body joint. It is intended for the larger 25-inch System:3 configuration, so model verification matters before ordering. Similar System:3 filters use different tank O-rings; for example, the smaller 21-inch S7-series configuration uses a different part number.\u003c\/p\u003e\u003cp\u003eIf a System:3 filter is leaking at the main tank seam, the tank O-ring should be inspected for flattening, cuts, distortion, debris, or incorrect seating. A damaged or incorrectly installed tank seal should be replaced with the exact part specified for the filter model rather than selecting an O-ring based only on appearance.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cp\u003eServicing the main tank seal on Sta-Rite\/Pentair System:3 S8M150 modular media, S8D110 D.E., and S8S70 sand filter models when the parts diagram calls for 24850-0009 \/ O-486.\u003c\/p\u003e\u003ch2\u003eWhy Exact System:3 Fitment Matters\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMatches the 25-inch System:3 tank application identified by Aladdin.\u003c\/li\u003e\n\u003cli\u003eProvides a direct aftermarket replacement reference for Pentair\/Sta-Rite 24850-0009.\u003c\/li\u003e\n\u003cli\u003eHelps avoid confusing the larger S8-series tank seal with other System:3 O-rings.\u003c\/li\u003e\n\u003cli\u003eUseful for leak repair or preventive seal replacement when the filter tank is opened for service.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Signs \/ Use This When\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWater is leaking from the main filter tank seam.\u003c\/li\u003e\n\u003cli\u003eThe existing tank O-ring is flattened, cut, stretched, distorted, or missing.\u003c\/li\u003e\n\u003cli\u003eThe filter has been opened for internal service and the old seal no longer seats correctly.\u003c\/li\u003e\n\u003cli\u003eYour model or parts diagram specifies Pentair\/Sta-Rite 24850-0009.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAladdin Equipment Company\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAladdin Part Number\u003c\/td\u003e\n\u003ctd\u003eO-486-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e601402254345\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter tank O-ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e25-inch System:3 filter tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVerified Models\u003c\/td\u003e\n\u003ctd\u003eS8M150, S8D110, S8S70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Reference\u003c\/td\u003e\n\u003ctd\u003ePentair\/Sta-Rite 24850-0009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair \/ Sta-Rite application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Status\u003c\/td\u003e\n\u003ctd\u003eAftermarket Aladdin replacement part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eCompatibility \/ Fitment Notes\u003c\/h2\u003e\u003cp\u003eAladdin specifically lists O-486-0 for the 25-inch System:3 S8M150, S8D110, and S8S70 models. It should not be treated as a universal System:3 or System 2 filter O-ring. Verify the exact filter model and parts diagram before ordering.\u003c\/p\u003e\u003cp\u003eThe corresponding Pentair\/Sta-Rite reference is 24850-0009. Other System:3 sizes and models can use different tank seals.\u003c\/p\u003e\u003ch2\u003eInstallation \/ Use Notes\u003c\/h2\u003e\u003cp\u003eShut the circulation system off and fully relieve filter pressure before opening the tank. Remove the old tank O-ring, clean the O-ring groove and mating surfaces, inspect for damage or debris, and install the replacement seal without twisting or pinching it.\u003c\/p\u003e\u003cp\u003eReassemble the filter according to the manufacturer’s instructions and verify the tank closure hardware is correctly positioned before restarting the system. Check the tank seam carefully for leaks after startup.\u003c\/p\u003e\u003ch2\u003eBuy with Confidence\u003c\/h2\u003e\u003cp\u003eBenchmark Pool Supply helps customers match filter seals by exact model and manufacturer reference number. O-486-0 is specifically tied to the larger 25-inch System:3 S8-series application, so checking the model number before ordering helps prevent confusing it with other System:3 tank O-rings.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat filters does Aladdin O-486-0 fit?\u003c\/h3\u003e\u003cp\u003eAladdin lists O-486-0 for 25-inch System:3 models S8M150, S8D110, and S8S70.\u003c\/p\u003e\u003ch3\u003eWhat Pentair or Sta-Rite part does O-486-0 replace?\u003c\/h3\u003e\u003cp\u003eAladdin identifies Pentair\/Sta-Rite 24850-0009 as the OEM reference for O-486-0.\u003c\/p\u003e\u003ch3\u003eDoes O-486-0 fit Sta-Rite System 2 filters?\u003c\/h3\u003e\u003cp\u003eAladdin’s current product information identifies O-486-0 for specific 25-inch System:3 models, not as a universal System 2 filter seal.\u003c\/p\u003e\u003ch3\u003eIs O-486-0 the same tank O-ring used on every System:3 filter?\u003c\/h3\u003e\u003cp\u003eNo. System:3 filters use different tank O-rings depending on model and tank size. Match the exact model and part number before ordering.\u003c\/p\u003e\u003ch3\u003eWhen should I replace the System:3 tank O-ring?\u003c\/h3\u003e\u003cp\u003eReplace it when it is cut, flattened, stretched, distorted, missing, or no longer seals the tank joint correctly. Always depressurize the filter before opening it for inspection or service.\u003c\/p\u003e","brand":"Aladdin Equipment Company Inc","offers":[{"title":"Default Title","offer_id":42038188703818,"sku":"O-486-0","price":23.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/O-486-0__83056.webp?v=1787670510","url":"https:\/\/benchmarkpoolsupply.com\/products\/aladdin-o-486-sta-rite-filter-tank-o-ring","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}