Variable Torsion Spring, 2" x .218 x 22" to 29". Left Wind. Lifts 83-107 lbs. on a 7' High Door.
$137.49
The same variable spring is suitable for 8-foot high doors weighing 93 to 108 pounds. Rated at an estimated 10,000 to 19,000 cycles.
NOTE: PATENT PENDING.
***Please allow 4 to 6 weeks for delivery as we endeavor to provide the highest quality products.***