Variable Torsion Spring, 2" x .234 x 25" to 31". Left Wind. Lifts 106-134 lbs. on a 7' High Door.
$163.05
The same variable spring is suitable for 8-foot high doors weighing 121 to 130 pounds. Rated at an estimated 11,000 to 16,000 cycles.
NOTE: PATENT PENDING.
***Please allow 4 to 6 weeks for delivery as we endeavor to provide the highest quality products.***