liftmaster garage door openers 41a5434-13 belt 8' door

Full belt assembly included. For use with LiftMaster belt drive models 2500, 2580, 2280, 3500, 3580, 3280. For use with Chamberlain belt drive models WD822K, WD922K, WD912K. For standard 8 foot high garage doors. T -Rail assembly ONLY. Belt length end to end SKU : ADIB00GOD91CU