Chamberlain 25C20 - Sprocket Coupling for Screw Drive Garage Door Operators Part

Chamberlain 25C20 - Sprocket Coupling. Liftmaster 25C20 Screw Drive Rail Sprocket Coupling Garage Opener 1000SDR 3240. Also known as: 25A20, 25C20, 025C0020, 25A18.

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