The LiftMaster G2777 7-Foot Belt Drive Rail Assembly is a sturdy, one-piece rail designed for smooth, quiet operation with 7-foot tall garage doors using compatible LiftMaster or Chamberlain belt drive openers. This complete assembly ensures proper function and fit—refer to your opener’s manual to confirm compatibility before ordering.

• One-piece design for straightforward installation and stable performance

• Engineered for 7 ft. tall residential garage doors

• Compatible with select LiftMaster and Chamberlain belt drive openers

• Ideal for both new installations and replacements