Merlin Tiltmaster Sectional Door Opener – Suitable for Sectional Overhead Doors up to 20 m2. C-Rail belt Drive Opener with a manufacturers 7-year warranty. Includes 2 four-channel key-ring mini-transmitters and 1 two-channel wireless wall button. The price includes installation and standard sectional door service. Centurion Garage Doors Service department will contact you to arrange a suitable installation date once your order has been processed.