The Reginox Air Switch is designed for use with the Reginox RD50 and RD60 waste disposal units. It allows you to turn your waste disposal unit on and off at will. Some waste disposal units are what is known as "continuous feed." Continuous feed means that the waste disposal unit is always on (unless switched off at the wall) and will therefore attempt to grind anything that goes into it, whether it be a dropped fork or a wandering finger. Having an air switch means that it will only grind when you press the button, and it will stop as soon as you press the button to stop.