The Bobrick 330-148 Top Door Knob Latch is a hardware component designed for compatible equipment. It functions as a door latching mechanism, helping secure the door in its closed position. The knob provides a point for operating the latch, allowing the door to be engaged or released when needed. This component is used during equipment maintenance or hardware replacement when the exis... https://partsfe.com/330-148-bobrick-latchknob-141-1051-top-door/1-330-148.html