2 QTY P730 30-Inch Plug-End Garage Door Spring (.177" #7 Wire) SET 2 SPRINGS
Two P730 springs - one on each side of the door - can handle a 90 lbs. to 150 lbs. door, with an initial tension of 110 lbs. to 120 lbs. Four P730 springs - two on each side of the door - can handle a 150 lbs.