[Water Pump with Indicator Light]: The pump is quiet (less than 30 dB). The low-voltage pump typically lasts 3-4 years. Observe the water level through the window; when the water level is too low, it changes from blue to red warning message. Automatic pump shut-off for dry-running protection. [3 Liter Large Capacity]: It has a water capacity of 3 liters (100 OZ), which means it is ideal for small and medium-sized pets. The circulation system helps to provide healthy and hygienic water for your beloved pets that lasts all day. [Two Flow Designs]: The pet water fountain has two modes, drinking faucet and gentle fountain. They attract pets' attention and encourage animals to drink water more often. [Filtered Water]: 3-layer filter, the sponge can catch cat hair and debris, the ion exchange resin layer can soften tap water, the third layer of activated carbon can remove bad taste and odor, providing fresh and clean water for pets.