Chamberlain PD432D 1/2-Horsepower Screw Drive Garage Door Opener

Chamberlain Consumer Group PD432D 1/2 HP Heavy-Duty Screw Drive Garage Door Opener The  PD432D Premium Power Drive  1/2 HP screw drive garage door opener is smooth-running, even in the most extreme temperatures. Its enclosed  drive screw makes it completely maintenance-free   " there is no metal-to-metal contact for smoother, quieter operation. The rail is also self-lubricating for maintenance-free operation and years of extended use. Chamberlain Consumer Group PD432D 1/2 HP Heavy-Duty Screw Drive Garage Door Opener Features:; Screw drive system is unique with the screw encased in a wear-resistant polyurethane channel that eliminated metal-to-metal contact; Lubrication-free drive system with extremely quiet operation; Exclusive motor vibration isolation system also eliminates power head vibration, resulting in even quieter performance; One remote control; Multi-function control panel; 1 dual light lens cover; Security+ anti-burglary technology assures a new code is sent every time the remote control is used; PosiLock theft protection assures that once the door is closed, it stays locked; Manual release handle in case of power failure; 1/2 HP