The PetSafe Drinkwell Original Pet Fountain provides 50 oz. of fresh, filtered water to your dog or cat. The stream of water encourages your pet to drink more. The receiving ramp is designed to reduce the splash of the falling water while the activated carbon filter keeps your pet's water fresh and your pet hydrated and healthy. Features & details WATER CAPACITY: 50 oz. water capacity is great for cats and small dogs ENCOURAGES DRINKING: The fountain's faucet-like stream entices pets to drink more water FILTERED WATER: you can purchase replaceable carbon water filter that keeps water fresh ADJUSTABLE STREAM: The pumps adjustable flow allows you to customize the water flow for your pet EASY-TO-CLEAN: Fountain is top-shelf dishwasher safe U.S.-BASED CUSTOMER CARE: Our pet product experts are here to help you and your pet and are available by phone, email or chat if you have any questions ESTABLISHED EXPERIENCE: PetSafe brand has been a trusted global leader in pet behavior, containment and lifestyle innovations for nearly 30 years. Note: I also have the additional 50 oz water tank that can be added to the back of the device. Like this listing and put in a bundle and I can share that item or send details to see if you want it. It is in the last 3 photos.