* Valve automatically shuts off Reverse Osmosis System when the storage tank is full * The Terminator 2000 valve will check the water pressure and the purified tank pressure, when the tank fills to about 66% of the water pressure, the valve will turn the system off * This valve can save as much as 1,550 gallons of water per month when compared to a system without a valve * The valve uses 1/8 inch FPT ports * Terminator valve can be installed in a vertical or horizontal position * Made in the USA