LiftMaster G3712RVLiftMaster G3712RV 12 Foot I Beam Rail Assembly The LiftMaster G3712RV 12Foot I Beam Rail Assembly is a one piece rail designed for use with compatible LiftMaster and Chamberlain chain drive garage door openers, providing smooth and reliable operation for 12 ft (3. 66 m) doors. One piece 12 ft I beam rail assembly suitable for residential garage doors up to 12 ft tall Provides stable, dependable operation with compatible LiftMaster and Chamberlain
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LiftMaster G3712RV
12-Foot I-Beam Rail Assembly
The LiftMaster G3712RV 12‑Foot I-Beam Rail Assembly is a one-piece rail designed for use with compatible LiftMaster and Chamberlain chain drive garage door openers, providing smooth and reliable operation for 12 ft (3.66 m) doors.
One-piece 12 ft I-beam rail assembly suitable for residential garage doors up to 12 ft tall
Provides stable, dependable operation with compatible LiftMaster and Chamberlain chain drive openers
Genuine LiftMaster replacement part for reliable quality and fit
Also known by alternate part numbers: MR3712RV, 3712PL, 012381037124, 3712RV
Compatible with LiftMaster opener models 87802 and 8587W