May 26, 2008 by longjourney
Rated a Very Helpful Review
Pros: Reliability, safety, security, speed, quietness.
Summary: A couple of years after we moved into our house, the garage door opener stripped the plastic drive sprocket. In choosing a replacement, I wanted a ½ horsepower motor and preferred a screw drive but settled for a chain drive (with a metal drive sprocket!) ... read more