TROUGH-O-MATIC METAL FLOAT VALVE; All metal float valve with flow up to 245 -gallons-per-hour, Operates at 10-70 psi, Automatically controls the water level for most-stock tanks, troughs, barrel or pans, Accepts standard 3/4" ,garden hose thread,Dimensions3"L x 7-1/2"W x 3-1/2"H