Commercial Operators Elite Hoist Operator Manufacturer: LiftMaster Model: H Series: Elite Elite Jackshaft Operator Manufacturer: LiftMaster Model: J Series: Elite Elite Trolley Operator Manufacturer: LiftMaster Model: T Series: Elite LD ATS Light-Duty Trolley Operator Manufacturer: LiftMaster Model: ATS Series: Light Duty LD Commercial Jackshaft Operator Manufacturer: LiftMaster Model: 3900 Series: Light Duty Usage: Sectional Doors MD Jackshaft Operator Manufacturer: LiftMaster Model: MJ Series: Medium Duty Usage: Standard Lift Sectional Doors MD Trolley Operator Manufacturer: LiftMaster Model: MT Series: Medium Duty Usage: Standard Lift Sectional Doors
