Rugged, reliable performance is what you'll get with the LiftMaster® 3255 1/2 HP Chain Drive Garage Door Opener. Its durable 1/2 HP motor combined with an industrial-strength chain drive provide smooth, steady performance year after year. Part of the Contractor Series, it is the choice for value and reliability. INCLUDES

This model has earned the Good Housekeeping seal. 

The 3240 1/2 HP Screw Drive Garage Door Opener is smooth-running, even in the most extreme temperatures, and is the perfect choice if you want the latest advancements in smooth-running performance with a completely maintenance-free drive system. Our engineers replaced the two-piece plastic liner and aluminum rail system with a stronger, simpler one-piece galvanized steel rail, resulting in reduced friction and eliminating binding and the need for lubrication. And the 1/2 HP motor is equipped with our patented Motor Vibration Isolation System (MVIS®) to reduce noise and provide smooth operation year after year. INCLUDES

This model has earned the Good Housekeeping seal.

Quiet and smooth, yet as tough as a steel-belted tire, the 3280 1/2 HP Belt Drive Garage Door Opener is the perfect choice if you want both quiet and smooth-running reliability, or simply have rooms positioned above your garage. The 1/2 HP heavy-duty motor is equipped with our patented Motor Vibration Isolation System (MVIS®) that eliminates powerhead vibration for reduced noise. It also features a solid-steel T-rail with automatic belt tensioner on the trolley, and an enhanced belt drive system for a more secure belt grip. INCLUDES

This model has earned the Good Housekeeping seal.