Rugged, reliable functionality is what you will get with the LiftMaster® 3255 1/two HP Chain Drive Garage Door Opener. The 8500 may well call for in depth modification to your existing door, specially if the door hasn’t been installed well. Chamberlain Sears LiftMaster Craftsman 971LM 972LM 973LM 970LM Transmitter 3 Button 390 Mhz Safety Plus Technique for use with Orange or Red Study Button. If you are building or remodeling a home I have no doubt that this is the way to go. Sure there’s a massive outlay, but after the (skilled) installation is completed you are going to have a system that could final a lifetime LiftMaster even guarantees it, for the motor at least. These are the alternate garage door opener brand names that are compatible with liftmaster.