Chamberlain 1/2Hp Chain Drive Opener Size:1/2 HP Box dimensions: 8-3/8″W x 6-1/8″H

Box dimensions: 8-3/8″W x 6-1/8″H x 3-7/8″D

pan head machine screws 8/32' x 2-3/8' are required and must be purchased separately (qty 2)

Use this product to deter pests and keep them from coming back

Long panel design for more leverage

stopper & trip lever overflow plate

Chamberlain 1/2Hp Chain Drive Opener Size:1/2 HP Box dimensions: 8-3/8″W x 6-1/8″HDrive Type: Long lasting chain drive. Trusted security: Security+ 2. 0 technology provides unmatched encryption (100 billion codes). BILT intelligent instructions: 3D instructions for a quick, easy installation. Lifting Force 1 2HP Support standard aluminum doors with a lift force equivalent to 1 2 HP*. Durable Chain Count on long term reliability with the durable chain drive system.