LiftMaster High Traffic Overhead Rail Model:8' Rail Refer to the following part

Refer to the following part # for the Straight Door Arm Replacement Kit: 4178B0034B

LiftMaster 41A4885

All-O-Matic Exterior Plastic Cover For SL-45DC

Refer to the manual for important safety and installation information

For use with Mighty Mule and Linear (GTO) PRO openers

LiftMaster High Traffic Overhead Rail Model:8' Rail Refer to the following partLiftMaster High Traffic Overhead Rail Only The HCTDCUL was designed with features your customers demand. From community managers with busy parking garages to automotive facilities that require ultra quiet and reliable performance, the HCTDCUL delivers. Standard Features Yellow zinc dichromate premium rail finish offers maximum rust protection in open air environments. Heavy duty 12 gauge C channel corrosion resistant steel track. Available for 8, 10,