This is ideal for those who are putting waste disposals in their sink.  Allows you to turn your waste disposal on and off using air pressure in a much safer and more efficient way. This can be mounted on your sink or benchtop and does not require a switch on the wall.
 
Note: This is only the button and does not include the electrical component.
 
Features
Available in black or chrome
Air switch button diameter is 50mm.
The actual hole of the barrell, where the thread is, is between 30-32mm.
 
This product has a 1 year warranty, suitable for domestic use.