LiftMaster Model 8500W 

Series: Elite
Drive: Direct
Force: 12V
Motor Warranty: Lifetime
Parts Warranty: 5 Years

LiftMaster Model WLED 

Series: Elite
Drive: Belt
Motor Warranty: Lifetime
Parts Warranty: 5 Years

LiftMaster Model 8500 

Series: Elite
Drive: Direct
Force: 24V
Motor Warranty: Lifetime
Parts Warranty: 5 Years

LiftMaster Model 8550WAL 

Series: Elite
Drive: Belt
Motor Warranty: Lifetime
Parts Warranty: 5 Years