Liftmaster 71-1550B72QGH Sprocket Kit, 72 Tooth, 1.25" Bore X 1/4" Keyway With SS
71-1550B72QGH is a 72 Tooth Sprocket Kit 1.25" Bore x 1/4" Keyway (50B72). For use with various LiftMaster® Logic 4.0/5.0 and MAXUM DC Standard-Duty and Industrial-Duty Commercial Door Operators. Refer to the installation manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
