LiftMaster K77-39427 Gray Cover for RSL12UL Operators ul-listed reliable operation in any location

reliable operation in any location where traditional power sources may not be accessible

Automatic Obstruction Detection: Works with an edge sensor to reverse gate motion upon impact

Relay Type: DPDT (Double Pole Double Throw)

Always verify fit against your door’s parts diagram or existing hardware before ordering

LiftMaster K77-39427 Gray Cover for RSL12UL Operators ul-listed reliable operation in any locationRSL12UL Gray Operator Cover for Commercial Gate Protection The LiftMaster K77 39427 is a genuine gray operator cover designed for LiftMaster RSL12UL series commercial gate operators. The operator cover plays a direct role in perimeter reliability by protecting internal electronics and drive components from weather exposure, dust, and impact that can cause failures or service interruptions. This replacement cover restores the enclosure integrity