{"product_id":"value-collection-zmscs70243-silicone-o-ring-dash-243-5-pack","title":"Value Collection ZMSCS70243 Silicone O-ring Dash 243 5 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCS70243 is a round cross-section silicone O-ring sized to Dash 243, with an inside diameter of 4.125 inches, an outside diameter of 4.375 inches, and a thickness of 0.125 inches. Rated at 70 Shore A hardness, this O-ring is engineered for sealing applications that demand a wide service temperature range, spanning from -80 degrees F to 450 degrees F. The silicone compound provides good resistance to dry heat, weathering, and ozone, making it a dependable sealing element in systems where thermal cycling and outdoor exposure are ongoing concerns. Each package contains 5 pieces.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for use in HVAC systems, plumbing assemblies, pool and spa equipment, and general industrial sealing applications where silicone is a specified or compatible material. It performs well in environments involving exposure to oils, chemicals, and solvents within its resistance limits, though users should note it carries limited resistance to petroleum-based oils under pressure. Licensed HVAC technicians, plumbers, and maintenance professionals commonly use Dash 243 O-rings when servicing larger-diameter fittings, valves, manifolds, and pump housings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSilicone material rated for -80 degrees F to 450 degrees F service temperature range\u003c\/li\u003e\n  \u003cli\u003eRound cross-section profile at 0.125 inches thick for consistent seating in standard grooves\u003c\/li\u003e\n  \u003cli\u003e70 Shore A hardness for firm, reliable compression sealing\u003c\/li\u003e\n  \u003cli\u003eGood weather and ozone resistance for outdoor or exposed installations\u003c\/li\u003e\n  \u003cli\u003eCompatible with oils, chemicals, and solvents within rated limits\u003c\/li\u003e\n  \u003cli\u003eSold in a 5-piece package to support stocking and repeat service calls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Dash 243 O-ring replacement for any application specifying a 4.125-inch ID, 4.375-inch OD, 0.125-inch thick round cross-section silicone seal.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified technician following applicable mechanical and plumbing codes. Always depressurize and, where applicable, shut off fluid supply before removing or installing O-rings. Inspect the groove and mating surfaces for damage or debris before seating the new O-ring. Avoid twisting or stretching the O-ring during installation, as distortion can compromise the seal.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Silicone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 243\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 Shore A (Hard)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -80 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 450 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Media\u003c\/strong\u003e: Oils, Chemicals, Solvents\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCS70243\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51711670255922,"sku":"ZMSCS70243","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d07c30dd8efcd500b8bb1759bdfbae86_f74edc69-b554-46ef-b137-1dfe256f0fc6.jpg?v=1788478394","url":"https:\/\/voomisupply.com\/products\/value-collection-zmscs70243-silicone-o-ring-dash-243-5-pack","provider":"Voomi Supply","version":"1.0","type":"link"}