M3-2312 2 button garage door remote Compatible with Marentec openers M4500, M4700, Q7500, Q7700, Q7900, M4500e, M4700e, M4900e, M4500ECO, M4700ECO, M50, M55, Synergy 260, 270, 370; Martin Opener DC3700, DC3700e, DC2500, DC2500e, DC3700HD.
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