LiftMaster Output Shaft Kit | LIF-K72-33873 Linear Telephone Entry Systems The included Accu Battery Backup

The included Accu Battery Backup provides emergency power so your garage door can continue to open and close when the electricity goes out

WET input: 5-24 VAC/VDC ±10%

featuring a purple or red/orange learn button

Moon Filter Yes

and interface cards—this rack provides a clean

LiftMaster Output Shaft Kit | LIF-K72-33873 Linear Telephone Entry Systems The included Accu Battery BackupLiftMaster Output Shaft Kit LIF K72 33873 K72 33873 is a Output Shaft Replacement Kit for use with various LiftMaster Medium Duty Commercial Door Operators and Commercial Access Solutions. Compatible with: LIF MT LIF BMT Note: this pard is made to order Genuine LiftMaster replacement part.