LiftMaster Compound Sprocket 41B19x1-1/4"B | LIF-K75-11377 41ASWG-489 Housing: Extruded Anodized Aluminum

Housing: Extruded Anodized Aluminum

The IRB-RET retroreflective photo eye is an external entrapment protection device type B1

or light commercial applications

Digital Receiver 433 MHz frequency

For use with various residential garage door openers

LiftMaster Compound Sprocket 41B19x1-1/4"B | LIF-K75-11377 41ASWG-489 Housing: Extruded Anodized AluminumLiftMaster Compound Sprocket 41B19x1 1 4"B LIF K75 11377 This is a replacement Compound Sprocket (41B19x1 1 4"B). Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also known as LiftMaster 75 11377 LiftMaster 15 11377 Compatibility This sprocket is compatible with LiftMaster Models MGJ and LGO Commercial Door Operators.