{"product_id":"prime-line-products-h-3578-twin-sash-balance-6-lb-wood-window","title":"Prime Line Products H 3578 Twin Sash Balance 6 Lb Wood Window","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRIME LINE PRODUCTS H 3578 is a 6-pound twin sash balance designed for wood window applications. It provides the counterbalancing force needed to hold single- or double-hung window sashes in position during operation. Built from all-steel construction, the H 3578 uses coil spring retraction and aircraft cable lifters to deliver reliable, consistent sash support. Attaching hardware is included. This part is typically installed by glaziers, general contractors, or experienced maintenance technicians performing window hardware service or restoration on wood-frame window units.\u003c\/p\u003e\n\u003cp\u003eThis sash balance is rated for 6-pound sash loads and is suited for residential and light commercial wood window frames. It is appropriate for new installations and direct replacement of worn or broken sash balance hardware. The included attaching hardware simplifies installation on standard wood window channels. Package quantity is 5 units per pack, making it practical for multi-window service calls or batch replacements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e6-pound sash load rating for wood window applications\u003c\/li\u003e\n  \u003cli\u003eAll-steel construction for durability\u003c\/li\u003e\n  \u003cli\u003eCoil spring retraction mechanism for smooth sash operation\u003c\/li\u003e\n  \u003cli\u003eAircraft cable lifters for reliable load transfer\u003c\/li\u003e\n  \u003cli\u003eIncludes attaching hardware for complete installation\u003c\/li\u003e\n  \u003cli\u003eSold in a pack of 5 units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with ACME, Duplex, Superior, Preset, and Fabco window systems. Designed for use with wood window frames requiring a twin sash balance with a 6-pound load rating.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a glazier, window technician, or experienced maintenance professional. Before servicing, ensure the window sash is fully supported and the work area is secure to prevent accidental sash drop. Follow the window manufacturer guidelines and any applicable local building codes when replacing sash balance hardware. Inspect the window channel and attaching points for wear or damage before installing the new balance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSash Load Rating\u003c\/strong\u003e: 6 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRetraction Type\u003c\/strong\u003e: Coil spring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLifter Type\u003c\/strong\u003e: Aircraft cable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5 units\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 6.06 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: PRIME LINE PRODUCTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: H 3578\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRIME-LINE","offers":[{"title":"Default Title","offer_id":51557789139250,"sku":"H 3578","price":227.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/71e89338b858d6d73f0914ee45a03a30.jpg?v=1786395301","url":"https:\/\/voomisupply.com\/products\/prime-line-products-h-3578-twin-sash-balance-6-lb-wood-window","provider":"Voomi Supply","version":"1.0","type":"link"}