LiftMaster 3/4 HP and 1 HP Trolley Operators Track/Chain Size:Up To 12 ft. By securing the limit switch

By securing the limit switch in place

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LiftMaster 3/4 HP and 1 HP Trolley Operators Track/Chain Size:Up To 12 ft. By securing the limit switchLiftMaster 3 4 HP and 1 HP Trolley Operators Track Chain This LiftMaster Track Chain is used for the GT, all SD, and all GSD 3 4HP and larger Commercial Door Operators. 8ft. Includes (2) 10 5808 P TRACK, TROLLEY, FOR 8FT DOOR, PRE PUNCHED (1) 19 5112 CHAIN, TROLLEY,#41, FOR 12FT DOOR 10ft. Includes (2) 10 5810 P TRACK, TROLLEY, FOR 10FT DOOR, PRE PUNCHED (1) 19 5112 CHAIN, TROLLEY,#41, FOR 12FT DOOR 12ft. Includes (2) 10 5812 P TRACK, TROLLEY, FOR