Plug end extension spring is a p528 28 in.
Standard extension spring garage door.
The holmes hally p730 30 in.
Plug end extension spring is a spring replacement for 1 piece tilt up canopy style garage doors.
Our springs are original equipment quality made to last for many years.
This spring system is installed over the two horizontal tracks.
Door with an initial tension of 110 lbs.
Starting with our easy to use selection tool you can easily find the garage door extension springs you are looking for the 1st time.
Add 2 inches 50 mm if you plan to install an electric door opener.
Two p730 springs one on each side of the door can handle a 90 lbs.
Plug end extension spring is a holmes spring replacement for heavier 1 piece tilt up canopy style garage doors.
Ideal security garage door extension springs are designed for standard 7 high garage doors.
The installation of safety cables is strongly recommended with this system.
8 doors require a 27 spring that stretches up to 48 75 total length when to door is closed extension springs are a non returnable item call customer service if you have any questions.
Two p528 springs one on each side of the door can handle a 105 lbs.
Plug end extension spring the holmes hally p730 30 in.
Extension springs store energy by extending while the door is closing and then releasing the stored energy while the door is opening.
It needs less headroom space 8 20 cm.