5 Gallon Double Wall poultry drinker. Thanks to heavy-duty galvanized steel and double-wall construction this 5 gallon poultry fountain provides a generous supply of cool water to promote intake for up to 80 chickens or game birds. Constant water level maintained in pan by vacuum, so no floats to get stuck or replaced. Model features: visible locking device, roost prevention tip, inner tank has brass valve with rubber sealing washer for positive shutoff.