Continuous circulating water with no-splash water slide. Recirculating flow and filter Each unit comes with a replaceable charcoal filter. Change filter every 30 days to ensure freshness. Dimensions: 13.5L x 9W x 7H inches. The Petmate Cool Flow Pet Fountain Medium White is perfect for households with cats or dogs. This pet fountain provides naturally cool, flowing filtered water your pet will love. It encourages your pets to drink more water, which reduces the risk for urinary diseases. Each fountain includes a patented no-splash water slide and a replaceable charcoal filter. About PetmateOne of the most respected and trusted names in the pet supplies industry, Petmate gave America its first airline-approved pet carrier more than 45 years ago. Through the years, Petmate refined the original carrier design, and by 1968 it began making the plastic kennel that's become the industry standard. Located in Arlington, Texas, Petmate leads kennel sales worldwide, but it's also an industry leader in pet feeding and watering systems, liter management products, and a wide variety of cat products. Petmate is dedicated to designing and manufacturing quality pet products to make your experience of being a pet parent more enjoyable.