The XtraFlo compact armless diaphragm valve has full-flow high volume fill with a water level differential between opening and closing reducing pump motor overload and electricity. The valve is livestock damage proof. For large troughs, this compact, armless diaphragm valve provides full-flow high volume fill and has a 1 water level differential between opening and closing, which allows full-flow operation meaning the pump runs unrestricted until the trough is full. - Backflow prevention top entry version available - Armless - Less damage from stock (excluding top entry version) - Full on, full off - Bottom, side or top mount - Long tail and top entry version available - UV stabilized and corrosion resistant