Liftmaster 41AC050-2 Logic Board for Chain Drive Operator, The LiftMaster 41ac050-2 is for 1/2hp chain drive, 315mhz security By Visit the LiftMaster Store

The LiftMaster 41ac050-2 is for 1/2hp chain drive, 315mhz security Operators built from 2005-current with one light Logic board is for models 2005-current Chain drive garage door