{"product_id":"mr-o-ring-262-epdm-o-ring-7in-id-pack-of-25-durable-epdm-seal","title":"Mr O-Ring 262 EPDM O-Ring 7in ID Pack of 25 - Durable EPDM Seal","description":"\u003cp\u003eIn this review the Mr O-Ring 262 EPDM O-Ring pack is assessed for workshop and maintenance use; it is aimed at technicians and hobbyists who need reliable, weather-resistant seals in a commonly used AS568 size. The bottom line: this pack of 25 black EPDM o-rings delivers consistent dimensions and broad chemical and temperature resistance, making it a practical choice when long shelf life and predictable performance are priorities. The reviewer found the 70A durometer material to balance flexibility and compression set resistance for many static and low-dynamic sealing tasks.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e262 EPDM Compound:\u003c\/strong\u003e Provides strong resistance to ozone, sunlight and weathering, which helps seals last longer in outdoor and exposed applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70A Durometer:\u003c\/strong\u003e Offers a firm yet flexible cross-section that holds shape while permitting a good sealing contact under moderate compression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal and Actual Dimensions:\u003c\/strong\u003e The listed 7in ID and 7-1\/4in OD correspond closely to actual measurements, giving installers predictable fit in AS568-compatible grooves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Rated from -55C to 125C so it withstands cold starts and everyday elevated temperatures common in plumbing and HVAC tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Chemical Compatibility:\u003c\/strong\u003e Performs well in alcohols, dilute acids and alkalis, water, hydraulic fluids and silicone greases, making it suitable for many service environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e Supplied as a pack of 25 which reduces repeat orders and is convenient for workshop stocking and repetitive maintenance jobs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThese o-rings suit maintenance technicians, plumbers, HVAC installers and DIYers who need a dependable, weather-resistant EPDM seal in a common AS568 size. The pack of 25 is particularly useful for facilities or shops that perform routine seal replacements and want consistent parts on hand.\u003c\/p\u003e\u003cp\u003eThose needing resistance to petroleum oils, aggressive hydrocarbons or continuous high-temperature exposure above 125C should look for a different elastomer, as EPDM is not optimized for such conditions.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConsistent nominal and actual dimensions provide predictable fit in AS568 grooves.\u003c\/li\u003e\n\u003cli\u003eGood resistance to ozone, sunlight and weathering for outdoor or exposed uses.\u003c\/li\u003e\n\u003cli\u003eWide compatibility with polar solvents, dilute acids\/alkalis and many hydraulic fluids.\u003c\/li\u003e\n\u003cli\u003ePack of 25 is cost-effective for frequent replacement or stocking.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot suitable for petroleum-based oils and some aggressive hydrocarbons, so it is limited in certain automotive or industrial oil-exposed applications.\u003c\/li\u003e\n\u003cli\u003eThe 70A hardness may be firmer than preferred for ultra-low-pressure dynamic seals requiring very soft materials.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e262 EPDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurometer\u003c\/td\u003e\n\u003ctd\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e7in ID, 7-1\/4in OD, 1\/8in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual Dimensions\u003c\/td\u003e\n\u003ctd\u003e6.984in ID, 7.262in OD, 0.139in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric Dimensions\u003c\/td\u003e\n\u003ctd\u003e177.39 mm ID, 184.45 mm OD, 3.53 mm CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-55C to 125C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Mr O-Ring 262 EPDM 7in ID pack of 25 is a practical choice for general-purpose sealing where weather, ozone and moderate chemical resistance matter. It offers dependable, AS568-compatible sizing and a useful temperature window at a reasonable value for workshops and maintenance teams, though users exposed to petroleum oils should select a different compound.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these o-rings AS568 compatible?\u003c\/strong\u003e\u003cbr\u003eYes, the product is sized to meet AS568 standards and the nominal dimensions align with standard grooves.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan these o-rings be used with automotive oils?\u003c\/strong\u003e\u003cbr\u003eEPDM is not recommended for petroleum-based oils; choose a different elastomer for hydrocarbon exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat environments do they withstand?\u003c\/strong\u003e\u003cbr\u003eThey resist ozone, sunlight, weathering, water, alcohols, dilute acids and many hydraulic fluids within the listed temperature range.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48231629914331,"sku":"B07R43JTB1","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_d63015be-96e6-425d-ab4d-7da33a4e90ed.jpg?v=1770741819","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-262-epdm-o-ring-7in-id-pack-of-25-durable-epdm-seal","provider":"GearMustHave","version":"1.0","type":"link"}