The Dogit Design Fresh & Clear Large Drinking Fountain for Dogs provides your dog with a continuous source of fresh-tasting, cool, filtered water. Responding to your pet's attraction to running water, the drinking fountain encourages your pet to drink more water which is beneficial to his health and well-being. The drinking fountain's re-circulating water flow eliminates stale, stagnant water, while the purifying filter helps absorb impurities and trap debris. Veterinarian recommended, designed with large breed dogs in mind, the drinking fountain is also perfect for older dogs, or dogs with joint or muscle problems.