Opener Square Rail Trolley Kit SHOP BY SPRING SIZE_250-1-3/4-33 Adjustable- Use for doors 1"

Adjustable- Use for doors 1" to 2" thick

please refer to the "How to measure garage door torsion spring" section on this page to ensure accurate selection

For garage door that has no other exit

It is essential to select the right size springs to maintain the proper balance of your garage door

Simply peel off the protective layer on the back and stick it to your desired position for a hassle-free setup

Opener Square Rail Trolley Kit SHOP BY SPRING SIZE_250-1-3/4-33 Adjustable- Use for doors 1"41C5141 1 is a Square Rail Trolley Replacement Kit. For use with various LiftMaster and Chamberlain Chain Drive Garage Door Opener Rail Assemblies. The square rail trolley is used for travel on the garage door opener rail and connects the door arm to the chain drive mechanism. Check the owner's manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Also known as: 062313, 41C5141, 41C51411