National 1-3/4 In. x 32 In. Right Wind 140 Lb. Lift Garage Door Torsion Spring
Garage door spring for doors weighing between 270 lb. and 280 lb. A pair of each spring should be used during installation. 140 lb. of lift for a 7' high door. Lift numbers are based on 4' diameter drums. Left and right wind versions are made of plain steel, and are reliable and durable.