The PETKIT Eversweet Dog and Cat Smart Waterer features a 3-stage carbon filtration system which filters out and helps completely eliminate or screen any and all harmful chemicals and impurities found in contaminated or unfiltered water. Internally each carbon filter features mesh screens with activated carbon and Ion-Exchange Resins, the device also features a filter-change reminded and will flash on the front of the device further reminded users when the filter unit needs to be changed. Furthermore the Eversweet features an LED Blue Light reminder which automatically lights up once water thresholds dip below certain levels reminding users to re-fill, the water levels can also be viewed through the built-in see-through acrylic chamber. The Eversweet is designed and engineered to remove any noises due to splashing as the infinity-flow concept guides the water flow through perforated holes that allow users to enjoy an ultra-silent experience in combination with the mini yet powerful built-in water pump. The Eversweet furthermore features both ‘Smart’ and ‘Normal’ mode functions, the smart function automatically turns off when not in use whole saving energy and in Normal mode allows users to have the option of allowing the device to continuously flow water. Additionally this device features 4 anti-skid grips located at the bottom of the device with an easy-fill removable lid for quick water-refill and Includes a filter unit, additional filter replacement units are sold separately and comes with a 12V adapter unit. Can fit approximately 2 Liters of water.