Chamberlain 1/2Hp Chain Drive Opener
Drive 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*.
Count on long-term reliability with the durable chain drive system.