64oz Water capacity is great for cats and small dogs. Bubbler-style fountain keeps fresh water flowing 24/7 and encourages pet to drink more. Rust resistant food-grade stainless steel tray provides more hygienic drinking. Ion-X and foam filters keep water looking and tasing great. Filters also help extend the life of your pump. Whisper-quiet with low water indicator. Auto shuts off when water is low. Recommend hand wash pump. All other parts are top rack dishwasher safe. Includes: (1) Ion-X filter. Foam filter. USB power cable. Wall adapter.