A trough valve that can be mounted in or out of the water and horizontally or vertically. Valve opens by water pressure for a full flow. A ¼ turn removes the valve for easy cleaning of filter! Rated at approximately 59 gallons per minute at 45 PSI. Meets non-siphon dairy regulations with 6" adjustable arm. ¾" male pipe thread. Recommended operating pressure of 5-100 PSI (rated to 150 PSI).