Drinkwell® Big Dog Pet Water Fountain Ideal for Large Breed Dogs The Drinkwell® Big-Dog Fountain uses the same innovative watering system as the Original Pet Fountain, featuring the patented free-falling stream of water that consumers have come to rely on for cats and small dogs for the past decade. A large charcoal filter removes bad tastes and odors leaving your pet with fresh tasting filtered water. Designed by a veterinarian specifically for large dogs, the Drinkwell® Big-Dog holds well over two gallons of water, making it the largest capacity pet fountain on the market (288 oz). The Drinkwell® Big-Dog is the most convenient way to provide man's best friend with fresh filtered water for days at a time. Simple and Safe Proven to benefit your pet's health, the Drinkwell® Pet Fountains are a great way to show your pets just how much you care. Our research shows that one of the best ways to improve your pet's health is to get them to drink more water and the best way to do that is with the Drinkwell® Pet Fountain! By using a 5-inch falling stream of water, the fountain continually aerates your pet's water with healthful oxygen. A charcoal filter removes bad tastes and odors, giving your pet the best possible and most appealing way to stay hydrated! Benefits Veterinarian Designed to encourage water intake and proper hydration in pets Increased water intake will help prevent urinary tract disease Provides pets with an enjoyable falling steam of water Removes bad tastes and odors with an extra large charcoal filter Circulation cools water naturally and adds more oxygen for freshness Easy-to-use and maintain Features: 2.25 Gallon Capacity (288 Ounces) Attached Reservoir increases capacity which makes refilling a snap 5 inch sidewall creates a deep pool of fresh water Fill-line shelf indicator is 2 inches below rim of bowl, creating a “splash-guard” to help keep water in the fountain Patented Free-Falling Stream entices pets to d