Extension Spring Pulley 3" for doors up to 100lb

Garage door sheave pulley 3" for extension cable, solid rivet. Steel. Zinc plated. For extension spring doors, 100# load. Are you looking for the clevis straps to make this pulley a set? You can get the compatible hardware kit for a set of 3" pulleys here. NOT COMPATIBLE WITH TORSION OR TORQUEMASTER SPRING SYSTEMS. Includes: 3" Diameter Steel Pulley Specifications: 100lb Load Solid Rivet 3/8" Bore Steel Construction Zinc Plated Compatible with up to 1/8" Diameter cables for Extension Spring Doors Take a look at this diagram to see the different spring types: NOT COMPATIBLE WITH TORQUEMASTER OR TORSION SPRING SYSTEMS. ONLY EXTENSION SPRINGS! When looking to replace the extension springs on your garage door, it's important to ensure that you have the right size for the weight and height of your door. For example, if your garage door weighs 100lbs, you will need two 100lb extension springs to lift it. Before purchasing, be sure to get accurate height and weight measurements for your