Little Giant Trough-O-Matic Stock Tank Float Valve with Aluminum Housing is specially created to help control the water level for most metal and plastic troughs, barrels, stock tanks, and pans automatically. It is constructed of sturdy aluminum housing with nylon orifice which guarantees great durability. This all-metal valve flows up to 245 gal. per hour and operates between 20 to 50 psi pressure so you can be sure it is very safe to use. It can be used with a standard 3/4 in. garden hose thread. The value measures 7.5 in. long, 3 in. wide, and 3.5 in. high.