Opener Straight Door Arm Section_Top Bracket Universal compatibility allows you to

Universal compatibility allows you to operate two different garage door manufacturers and/or frequencies at the same time

This left wound torsion spring comes in a white finish with a 0

For use with 2" inside diameter springs

Maximum cable diameter 1/8

Bottom Fixture for 2" Track

Opener Straight Door Arm Section_Top Bracket Universal compatibility allows you to4178B0034B is a straight door arm replacement kit. The straight arm when paired with the curved arm, connect the garage door to the garage door opener trolley. This straight door arm section is compatible with most residential garage door openers. Check the manual for model number before ordering to ensure compatibility