Power Drive® and Whisper Drive® are Chamberlain's brands of residential garage door openers, designed for do-it-yourself installation.

www.chamberlain-diy.com

Elite® offers premier residential and commercial gate operators and access control systems professionally installed by a national network of trained dealers.

www.eliteaccess.com

LiftMaster® is the #1 brand of professionally installed residential garage door openers, commercial door operators and gate operators sold through a network of trained professional dealers worldwide.

www.liftmaster.com