FILTER SYSTEM: The drinking fountain provides filtered, chilled and circulated water. The drinking fountain is equipped with a water pump that provides circulation and filtering through a ionic resin and activated carbon filter. The filter system filters all hair, food remains. Provides fresh cleaning water to your lovely pets. PROMOTES HEALTH & HYGIENE: Cats prefer to drink fresh water and attractive when a source of flowing water is available. In nature, flowing water is much fresher than standing water. In addition, flowing water ensures a constant water circulation and a lot cleaner water. MODERN DESIGN: 2.5L/0.66 Gallon large capacity is great for small to medium pets! The material is PP Resin and 100% safe for your beloved pet. The transparent water level window clearly indicates the water level and reminds you to replenish water in time. Adapter with 1.5m USB cable easy to use. ULTRA SILENT PET FOUNTAIN: The drinking fountain is equipped with a very quiet water pump, this is