Tarter galvanized round-end water stock tank is constructed with a 4-ply, double-lock bottom and deep sidewall corrugation for strength. Made with a heavy-duty zinc G90 coating that withstands harsh weather conditions, a 1-1/8″ top rim that is permanently rolled for strong reinforcement and a 1″ tube inside rim of tank for additional strength. Most feature a 1″ drain plug. Unmatched quality and consistency in construction. Comes in sizes from 70 Gallon - 220 Gallon.