Garage Door Chain Hoist is a great addition to any heavy manually operated garage door. The kit including the chain is 26′ total length. The actual access height of the chain will be near half the total length since it is looped. The function of the manual hoist is to open and close the door when the power is off, mainly according to the gear to drive the chain that makes the door up and down. The advantages of garage door chain hoists are simple, durable and efficient.
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