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(P928) 28 in. Plug-End Extension Springs (0.148 in. No. 9 Wire) (Pair)
- 2 x P928 springs supports up to a 75 lbs. garage door
- Length over coils: 28 in.
- Outside diameter: 1-1/4 in.
- Wire gauge: 0.148 in. (no. 9 wire)
- Initial tension: 45 lbs. - 55 lbs.
- Maximum allowable stretch: 18.5 in.