P328 28 in. Plug-End Extension Spring (0.244 in. No. 3 Wire), E900 Hardware, Mfr#: P328

P328 28 in. Plug-End Extension Spring is a Holmes spring replacement for heavier 1-piece / tilt-up / canopy-style garage doors. Two springs – one on each side of the door – can handle a 125 lbs. to 250 lbs. door, with an initial tension of 165 lbs. to 185 lbs. A c-hook (sold separately) is required to connect spring to jamb hardware.