The E900 HARDWARE P928 28 in. Plug-End Extension Spring is a Holmes spring replacement for lighter one piece garage doors. 2 x P928 springs can handle garage doors weighing up to 75 pounds. P928 springs are also a popular installation on toy hauler doors.
- 2 x P928 springs support up to 75 lbs. garage doors
- There are normally 2 P928 springs on a single car aluminum 1-piece garage door, 1 on each side
- Length over coils: 28 in.
- Outside diameter: 1-1/4 in.
- Wire gauge: (0.148) #9
- Initial tension: 45-55
- Wire diameter and gauge: (0.148 in.) #9
- Maximum allowable stretch: 18.5 in.
- Manufacturer warranty: 1-year