A reliable heated poultry waterer for all seasons. Internal 100W heater keeps water flowing in temperatures as low as -20°F. Built-in thermostat turns heating element on at 40°F and off at 60°F. Suited for up to 35 adult chickens. (Ducks can drink from this waterer although we recommend also offering water in a rubber pan so they can submerge their heads.) Blue 3 gallon bucket with red lid.