Automatic Drinker with 2 Auto-Fill Cups: No need to push any tabs. Our cups always remain half full to provide animals with fresh clean water and prevent spillage. Swap to our freeze-proof chicken nipples in the colder months! Compact and Efficient: Perfect size for smaller spaces, large capacity! The Waterer holds 2 gallons with 2 Auto-Fill Cups and 2 Horizontal Nipples. A great solution for clean water for chickens, ducks, geese, turkey, quail and more! Clean and Cost Effective: Innovative design keeps dirt and debris OUT and water IN. Light cannot pass through waterer which prohibits algae growth. No backflow from either nipple into the waterer. Fresh clean water for your chickens every day! We Thought of Everything: Cups stay half full to avoid spills; removable cup inserts makes cleaning the auto-fill cups a breeze; nipple dribble dishes catch the drips and keep the coop clean and dry