LiftMaster G3712RV I-Beam Rail Assembly (1pc, 12') liftmaster k20-1100 Barrier arm with breakaway bracket

Barrier arm with breakaway bracket and 8 counterweights

SwingSmart DC Quick Start Steps (Spanish)

Price includes 52 ft (16 m) of rack

Card Type: EM Card

An onboard radio receiver is included with the LA412

LiftMaster G3712RV I-Beam Rail Assembly (1pc, 12') liftmaster k20-1100 Barrier arm with breakaway bracketLiftMaster G3712RV I Beam Rail Assembly (1pc, 12') This is a one piece 12 feet (3. 66m) Rail Assembly for Chain Drive Openers. This complete rail is used to install various LiftMaster and Chamberlain Chain Drive Garage Door Openers. Check the manual or replacement parts section for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also known as LiftMaster MR3712RV LiftMaster 3712PL LiftMaster