Extension Springs For 8' tall door each
Heavy Duty Clip Ends
27" plus 48" max stretch
Extended Length 75"
2 Springs Are Needed To Pull The Total Weight of Spring Rating (Ex. 200# door requires 2 - 200# 27 x 48 springs)
Available in 10# Increments from 200# and Up
Product works great
Posted by Bruce on 31st Aug 2013
After installation I was surprised at how much smoother the door opened and closed. Both is ease of travel and much less noise. My complaint is not with the produce but with the delivery. Not including the day of order, it took 11 days for the springs to arrive.