Behlen Country RE224RW1 100-Gallon Galvanized Waterer Tank The poly waterer has a large opening to make it easier for animals to drink The waterer box and float are molded from tough, food-grade polyethylene for cleanliness and long-life The built-in float guard protects the valve and float mechanism Valves adjust easily for proper water level and the rubber gasket prevents leaking Nominal size 2-feet by 2-feet by 4-feet; 100-gallon