Keep the ideal liquid level in the Mashtun during sparging or in a gravity driven wine bottle filler during use. Relieves you from the need to turn the pump off and on so that you can do better things like... clean something or play with the kids. It can be bent to any configuration you choose based off your use. Will switch up to 1/3 hp motor. Operation of this float switch can be changed from filling to cutoff by flipping the float upside down. If the switch is behaving the opposite of how you require, remove the pin at the bottom of the unit, slide the float out, turn it upside down, reinsert it onto the post, and put the clip back in place. This will switch the operation of this unit.