{"product_id":"mr-o-ring-452-epdm-o-ring-70a-11-1-2in-id-pack-of-5","title":"Mr O-Ring 452 EPDM O-Ring 70A 11-1\/2in ID Pack of 5","description":"\u003cp\u003eIn this review the Mr O-Ring 452 EPDM O-Ring is evaluated for workshop and field sealing tasks where weather resistance and a broad temperature range matter. The bottom line: this pack of five 70A durometer EPDM o-rings is best for technicians and hobbyists who need reliable, weather-resistant seals sized to AS568 conventions, and the single biggest reason to buy is the combination of accurate nominal and actual dimensions plus a material that resists ozone, sunlight and many common fluids.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e70A Durometer:\u003c\/strong\u003e Provides a firm yet flexible seal suitable for static and low-dynamic applications where a balance of resilience and compression set is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate dimensions:\u003c\/strong\u003e Nominal 11-1\/2in ID, 12in OD and 1\/4in CS with actual measured sizes for reliable fit in housings specified to those tolerances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPDM material:\u003c\/strong\u003e Excellent resistance to ozone, sunlight and weathering, making these o-rings appropriate for outdoor and exposed installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Works with alcohols, automotive brake fluid, dilute acids and alkalis, silicone oils and greases, and steam up to high short-term temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range:\u003c\/strong\u003e Rated from -55C (-67F) to 125C (257F) for broad use across cold and hot service conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese EPDM o-rings are aimed at maintenance professionals, HVAC and plumbing technicians, and DIY users who need dependable sealing for water systems, brake fluid interfaces, steam-exposed components, or outdoor equipment exposed to UV and ozone. The pack of five and the clear stated actual dimensions make them convenient when replacing multiple seals in a system.\u003c\/p\u003e\n\u003cp\u003eUsers requiring resistance to strong hydrocarbons, certain oils not listed, or specialized food-grade certifications should look elsewhere, since EPDM is not universally compatible with all nonpolar solvents and specific regulatory grades are not specified in the product information.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood weather and ozone resistance from EPDM, making it durable for outdoor use.\u003c\/li\u003e\n\u003cli\u003eConcrete nominal and actual dimensions reduce guesswork when fitting into standard AS568 sized housings.\u003c\/li\u003e\n\u003cli\u003eWide usable temperature range and compatibility with many common fluids encountered in industrial and automotive contexts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot specified for all aggressive hydrocarbon fluids, so may not suit every chemical service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e452 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\u003e11-1\/2in ID x 12in OD x 1\/4in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e11.475in ID x 12.025in OD x 0.275in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric dimensions\u003c\/td\u003e\n\u003ctd\u003e291.47 mm ID x 305.45 mm OD x 6.99 mm CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-55C (-67F) to 125C (257F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003ePack of 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 452 EPDM 70A o-ring pack is a practical choice for anyone needing reliable, weather-resistant seals in standard AS568 sizing; it delivers accurate dimensions, broad fluid compatibility for many common applications and strong ozone\/UV resistance, making it good value for maintenance and outdoor sealing tasks.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these o-rings suitable for outdoor use?\u003c\/strong\u003e\u003cbr\u003eYes. The EPDM material offers excellent resistance to ozone, sunlight and weathering, making them appropriate for outdoor installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these work with steam?\u003c\/strong\u003e\u003cbr\u003eThey are compatible with steam up to about 204.4C (400F) for certain exposures as noted, though the continuous temperature rating is -55C to 125C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the sizes follow AS568 standards?\u003c\/strong\u003e\u003cbr\u003eYes. The product is designed to meet AS568 size definitions and includes both nominal and actual measured dimensions for fit confirmation.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48663224254683,"sku":"B07R73QZSN","price":69.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_4e52a118-10c2-409d-8cf6-628f65c8c1a7.jpg?v=1778637879","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-452-epdm-o-ring-70a-11-1-2in-id-pack-of-5","provider":"GearMustHave","version":"1.0","type":"link"}