Holmes P928 one piece garage door spring.

There are normally 2 P928 springs on a single car aluminum one piece garage door one on each side.

Holmes P928 springs will have an orange sticker and a white tip and P928 stamped on end of the spring.

Specifications: Length Over Coils: 28" Outside Diameter: 1 1/4" Type of Ends: PLUG Wire Diameter & Guage: (.148) #9 Initial Tension: 45 - 55 Maximum Allowable Stretch: 18.5"