Description: 28 in. Plug-End Garage Door Extension Springs (0.177 in. No. 7 Wire)
Category: Garage Door Extension Springs
Material: Fabricated with high carbon ASTM 229 Class II Oil-Tempered Wire.
Execution Factors: 2 x P728 lifts 90-150 lb. door; 4 x P728 lifts 150-300 lb. door
Cone Type: Plug-end extension spring with safety containment rod
Includes: Pack of 2 Plug-End Extension Springs