Coil Spring 1/2 inch Constant Force, 3.5 Pound 1-1/4 Universal Pocket

Universal Constant Force balance for single or double hung sliding windows with 1.25 inch pocket Pocket Width: 1.25 inch Coil thickness: 1/2 inch Weight Capacity: 3.5 pounds Number on Balance is located on the end, sometimes hard to see Available in several weight capacities: 3.5, 4.5, 5.5, 6.5, 7.5 and 9 pound. Coils can be mixed together to match appropriate sash weight See below for other weight coils: 4.5 Pound Weight Capacity: 533030-4 5.5 Pound Weight Capacity: 533030-5 6.5 Pound Weight Capacity: 533030-6 7.5 Pound Weight Capacity: 533030-7 9 Pound Weight Capacity: 533030-9 Sold as coil only. Can be combined with other parts to make balance - coils, support covers, brake shoes and pivots sold separately