ONE Holmes P528 One Piece Garage Door Spring.These are sold individually, however we recommend that you replace both springs when one breaks, as the other is soon to follow.

This single spring is for 7 foot or higher wood garage door, however may also be used on a one piece steel or aluminum door as well.

There are normally "TWO" P528 springs on a one piece garage door, one for each side.

These are also popular replacement Toyhauler Door Springs, check your Manufacturer for proper spring mdl. #

Length Over Coils: 28" Outside Diameter: 1 5/8" Type of Ends: PLUG Wire Diameter & Guage: (.207) #5 Initial Tension: 135 - 145 Maximum Allowable Stretch: 22"