Liftmaster LA500DCS Swing Gate Opener Secondary Arm with Cable
LA500DCS Secondary Arm with Hardware and Cable
LA500DCS Secondary Arm is a replacement arm for the LA500 system. It will move a gate that is either 18ft or weighing up to 1200 pounds. It will open up to 90 degrees in 15-17 seconds.
Before you purchase make sure that you need to the secondary arm and not the primary arm. The secondary arm will not work as a primary arm.