“Ultra-Quiet Runs: Ultra-quiet water pump never disturbs you or your pet, and the pump should be cleaned at least every two weeks to prevent clogging (Replacement Pump: B07WKLJ8PX) 2.4L Large Capacity and Visible Water Level: Large water reserve is suitable for small and medium-sized pets Water level indicator window makes it easy to monitor the volume water at any time, your lovely pets will never be thirsty again for lack of water in your absence. Blue LED Indicator: The LED indicator also encourages pets to drink at night. no longer have to worry about your pet having thirsty nights Circulating Filtration System: Replaceable carbon filters can purify water, remove dirt It provides fresh and clean water to your lovely pets.The cat fountain is compatible with triple action filters (Amazon code: B07WJGQW2T ) 3 Different Water Flow: Soft flow, bubbling water and quiet flow, meet different needs. Free-falling stream and bright color encourage pets to drink more water Pet Water Fountain