Description
National Loop 4’ X 7’ Preformed Saw Cut Loops (18AWG black X NL) Model:20' Lead in 1 Pair of XP FAA 63000131 liftmaster bearing Model:Uninstalled 3 7 16 diameter 1 Pair of XP 30 photobeam photocells 785105 Monitors the speed and position of each wing and adjusts the speed as necessary to ensure the primary gate closes last