2 For Liftmaster 81LM Garage Door Remote Opener (1993-1997) Green Button - Billion Code Technology                                                                                                                    

    • STOP! Make sure your opener has a green learn button before purchasing
    • for openers manufactured from 1993-5/1997 with a GREEN learn button
    • See pictures for help locating your "programming learn button"
    • for billion code technology
    • replacement for 81LM, 82LM, 83LM, 84LM, 850CB, 853CB, and 856CB               
              

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