If you're a chain drive loyalist who is looking for more power in a garage door opener, the LiftMaster ® 3575 3/4 HP Chain Drive Garage Door Opener is the perfect solution. Its finely-tuned, yet ruggedly designed 3/4 HP motor, combined with our patented Motor Vibration Isolation System (MVIS ®), provides the precise synergy needed to open heavy garage doors quickly and quietly.
