Wanting a more heavy duty opener with a few more bells and whistles? Consider the LiftMaster Pro series of openers. These openers are built to last, and well suited to lift heavier doors because of their solid steel, one-piece rail. LiftMaster, by the way, is the most highly sold opener in the US by professional installers. The LiftMaster 8550 is the top of the line opener. It comes with 3/4 horsepower, quiet belt drive, battery back-up, built in wifi, smart wall console, 2 remotes, keypad, safety sensors, and lifetime belt and motor warranty.