1/2 HP AC BELT DRIVE WI-FI® GARAGE DOOR OPENER
G2777, G2778 and G2770 is a One-Piece 7' (2.1 m), 8' (2.4 m) and 10' (3 m) Rail Assembly. This complete rail is used to install various LiftMaster® and Chamberlain® Belt Drive Garage Door Openers. Check the manual for specific rail kit information before ordering to ensure compatibility.
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