Buckeye's new Hi-Lo Tank Level Controller is the perfect solution to keep a fluid storage tank full. The controller energizes a 110 v outlet (9 amp max.) when the water level reaches the lower float switch, and de-activates the outlet when the fluid level reaches the upper float. Includes indicator light. Great for controlling a solenoid on the feedwater tube of an RO or RODI system - keeps the system from short cycling. The Hi-Lo float switches mount from the outside of your storage tank - exceptionally convenient in that many times the inside of a tank can not be accessed.  These float switches will work on tank wall thicknesses up to a maximum of 0.22 inches.  For tanks with thicker walls, please contact Buckeye for optional/alternative float switches.