Liftmaster 41AC050-2 Logic Board for Chain Drive Operator Go to amazon.com Related posts Best liftmaster professional remote 41ac050-1 for 2022 FeatureThe LiftMaster 41ac050-2 is for 1/2hp chain drive, 315mhz securityOperators built from 2005-current with one lightLogic board is for models 2005-currentChain drive garage door
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