The Chamberlain 8 ft. Belt-Drive Extension Kit is compatible with Chamberlain's Whisper Drive and Whisper Drive Plus belt-drive garage door openers. It comes with a rail extension and replacement belt and can be used with garage doors up to 8 ft. high.
- For use with garage doors up to 8 ft. high
- Compatible with chamberlain whisper drive and whisper drive plus belt-drive models
- Kit includes rail extension and replacement belt
- Comes ready to install with complete instructions