Chamberlain® 8808CB-P Belt Drive Rail Extension Kit for 8' High Garage Doors Rainy_Weather More teeth are engaged simultaneously

More teeth are engaged simultaneously which creates greater torque/strenght without the mechanism failing

Single or multi-wire high tensile fences

the handle snaps to a mid-point position & red indicator identifies trip

Two coats are required for waterproofing bare

notching timbers and driving wooden or plastic stakes

Chamberlain® 8808CB-P Belt Drive Rail Extension Kit for 8' High Garage Doors Rainy_Weather More teeth are engaged simultaneouslyThis 8 ft. Belt Drive Extension Kit was designed specifically for use with Chamberlain Whisper Drive and Whisper Drive Plus belt drive garage door openers. Featuring the quick install rail system, this is easily installed with all the necessary hardware and replacement belt. Works on garage doors up to 8 feet high Designed specifically for use with Chamberlain Whisper Drive and Whisper Drive Plus belt drive garage door openers Quick install rail