5 gallon heavy duty automatic waterer provides consistent fresh water at all times. Made from heavey-duty, high-density polypropylene and can withstand the toughest punishment. Fence or wall mount and easy to clean, just twist the large dreain plug to discharge old waste water. Add a drain hose and direct used water away from the drinking area. It's rust proof, durable, cleans quickly, and is sun resistant. Ideal for Large dogs, sheep, goats, cows, horses or other large animal hydration needs. No training required. Will not over-flow. Measures 17" L x 14" W x 10.5" D.