Heavy duty float valve for tanks, barrels, troughs and pans. Self-flushing non-corrosive. For gravity or pressure. Valve seat raised for easy clearance of foreign particles. All-Poly construction. Neoprene gasket guaranteed indefinitely.The whole unit is non-toxic and not affected by medicines or other additives. Max flow 11 gallons an hour gravity fed. 45-90 gallons an hour pressure fed. 8" L Fits Inlet Pipe Thread ½"