{"product_id":"constant-force-balance-system-single-coil-choose-weight-1","title":"Constant Force Balance System, Single Coil - Choose Weight","description":"Certainteed Coil Spring - Constant Force Balance System. \u003cbr\u003e\u003cbr\u003eThis design offers an easier opening and closing of double hung vinyl windows. \u003cbr\u003e\u003cbr\u003eEach 3\/4 inch wide coil spring has a number embossed on the side that determines the strength of the balance coil. \u003cbr\u003eThey may have one or more coils and the coils may have different numbers on each coil if used in doubles or triples.\u003cbr\u003e\u003cbr\u003ePlease check all dimensions\u003cbr\u003e\u003cbr\u003eChoose coil weight from the list below (number stamped on single coil spring):\u003cbr\u003e\u003cbr\u003ePriced and sold each. - Includes Pivot Lock Shoe, Balance Spring Cover, Balance Drum and Coil\u003cbr\u003eBest if replaced in pairs (both sides)","brand":"Door and Window Parts","offers":[{"title":"263-S 3 lbs","offer_id":53485026869553,"sku":"534820-KIT-263S3","price":19.95,"currency_code":"USD","in_stock":true},{"title":"334-S 4 lbs","offer_id":53485026902321,"sku":"534820-KIT-334S4","price":19.95,"currency_code":"USD","in_stock":true},{"title":"335-S 5 lbs","offer_id":53485026935089,"sku":"534820-KIT-335S5","price":19.95,"currency_code":"USD","in_stock":true},{"title":"336-S 6 lbs","offer_id":53485026967857,"sku":"534820-KIT-336S6","price":19.95,"currency_code":"USD","in_stock":true},{"title":"405-S 5 lbs","offer_id":53485027000625,"sku":"534820-KIT-405S5","price":19.95,"currency_code":"USD","in_stock":true},{"title":"406-S 6 lbs","offer_id":53485027033393,"sku":"534820-KIT-406S","price":19.95,"currency_code":"USD","in_stock":true},{"title":"407-S 7 lbs","offer_id":53485027066161,"sku":"534820-KIT-407S","price":19.95,"currency_code":"USD","in_stock":true},{"title":"408-S 8 lbs","offer_id":53485027098929,"sku":"534820-KIT-408S","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/6846\/6993\/files\/613866.jpg?v=1775139373","url":"https:\/\/doorandwindowparts.com\/products\/constant-force-balance-system-single-coil-choose-weight-1","provider":"Door and Window Parts","version":"1.0","type":"link"}