Miller DOMEWTR10 10 Gal. Plastic Dome Waterer

Best suited for adult birds. Made of strong, heavy-duty plastic. Top-fill design is easy to use. Valve in base controls water flow  close when filling, then open to allow water to fill the base. For best results, set waterer on flat ground before filling. Accommodates up to 40 chickens, also good for ducks or other poultry. Holds up to 10 gallons of water.