The Skylink ATR-1723B Heavy Duty 3/4HPf belt drive residential garage door opener are designed for the DIY consumer with a simple “Quick-Fit” tubular rail for a fast installationre. Reliable and durable, while being compact and powerful, it is equipped with a DC motor that provides quiet operation when compared to traditional garage door openers with AC motors. | Skylink ATOMS 3/4HP Belt Drive Garage Door Opener