LiftMaster Craftsman Chamberlain 41A5021-1M-315
Model number 41A5021-1M-315 same as 41A5021-1H-315.
This circuit board will fit the square box type openers from LiftMaster, Craftsman or Chamberlain years 2006-2014, 41A5021-1H-315 & 41A5021-1M-315 your compatible with single light bulb motors.
The learn button is PURPLE in color and PURPLE antenna as you can see in pic. #1.


