{"product_id":"gardner-spring-37089g-extension-spring-0-75in-od-12-8lb","title":"Gardner Spring 37089G Extension Spring 0.75in Od 12.8lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GARDNER SPRING 37089G is a helical extension spring designed to store and release energy under tensile load. With a 0.75-inch outside diameter, 0.063-inch wire diameter, and a spring rate of 1.2 pounds per inch, this spring delivers controlled, predictable resistance across its travel range. It has a free length of 5 inches and extends to a maximum working length of 14.67 inches before reaching its maximum load of 12.8 pounds. This type of extension spring is commonly installed by HVAC technicians, mechanical contractors, and equipment service professionals in applications requiring consistent tension and return force.\u003c\/p\u003e\n\u003cp\u003eThe 37089G is suited for light-duty industrial and mechanical service applications where a compact extension spring with moderate load capacity is required. Typical uses include damper linkages, door closures, counterbalance assemblies, and equipment return mechanisms found in HVAC, plumbing, and general mechanical systems. Each package contains 3 pieces, making it practical for service calls requiring a spare or for installations needing matched sets.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.75-inch outside diameter for standard spring-cavity fitment\u003c\/li\u003e\n  \u003cli\u003e1.2 lb\/in spring rate for consistent, linear tensile resistance\u003c\/li\u003e\n  \u003cli\u003e5-inch free length extends to 14.67 inches at maximum load\u003c\/li\u003e\n  \u003cli\u003e12.8-pound maximum work load rating\u003c\/li\u003e\n  \u003cli\u003e0.063-inch wire diameter for appropriate strength-to-flexibility balance\u003c\/li\u003e\n  \u003cli\u003eSold in packs of 3  -  useful for service stock or matched installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement extension spring for light-duty mechanical, HVAC, and equipment assemblies requiring a 0.75-inch OD spring with a 1.2 lb\/in rate and 12.8-pound maximum load capacity.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eExtension springs should be installed by a qualified technician familiar with tensioned spring assemblies. Always de-energize or relieve all related mechanical tension before removing or installing the spring. Use appropriate spring hooks or pliers rated for the load  -  never overstretch beyond the maximum extended length of 14.67 inches. Inspect hook ends and attachment points for wear or deformation before reinstallation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Work Load\u003c\/strong\u003e: 12.8 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring Rate\u003c\/strong\u003e: 1.2 lb\/in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Extended Length\u003c\/strong\u003e: 14.67 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Diameter\u003c\/strong\u003e: 0.063 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Pieces per Package\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.35 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: GARDNER SPRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 37089G\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GARDNER SPRING","offers":[{"title":"Default Title","offer_id":51964933636402,"sku":"37089G","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9c8c14dee11dca0ddb405b2e4b8fe29b.jpg?v=1789949429","url":"https:\/\/voomisupply.com\/products\/gardner-spring-37089g-extension-spring-0-75in-od-12-8lb","provider":"Voomi Supply","version":"1.0","type":"link"}