DESC: The 12-Gallon "On-Demand" Wet/ Dry Vacuum can be simply attached to your power tool exhaust port, plug the tool into the vacuums motor housing, and as soon as you hit the power putton on your hand tool, your On-Demand Vacuum turn-on to vacuum the dust and particules as you are working. This vacuum also has the versatility to be used in the home, workshop, garage, basement, and automobile.