Detail
The Holmes-Hally P730 30 in. Plug-End Extension Spring is a spring replacement for 1-piece / tilt-up / canopy-style garage doors. Two P730 springs - one on each side of the door - can handle a 90 lbs. to 150 lbs. door, with an initial tension of 110 lbs. to 120 lbs. Four P730 springs - two on each side of the door - can handle a 150 lbs. - 300 lbs. door. Either 4 c-hooks or 4 w-hooks (sold separately) are required to connect the springs to the jamb hardware. Material: Steel.
