Improved Pump: 1.5W pump is equipped with filter sponge that prevents impurities. It is recommended to clean it at least every two weeks to prolong the service life, otherwise the blockage will affect the operation (replacement pump: B08FLVFH7N) Silent Operation: The volume of 33 db will not disturb the rest of your furry friend. Regularly checking the blockage of the pump and the amount of water in the fountain is the effective method to reduce pump noise. Remove the flower cap, the water flow noise will be reduced Filtration System: Cotton, activated carbon, coconut shell and resin filters can reduce dirt and improve water quality. It is recommended to replace the filter two to four weeks, which allows your pet to drink healthy and clean water every day. (replacement filter: B09PN9JC72) Good Water Circulation: The flowing water is able to keep the water pure and limit its contamination, increase the oxygen content and prevent the growth of bacteria and the accumulation of dirt Translucent design: Built-in LED light and translucent appearance with 2L large capacity can monitor the water level at any time, you can add water timely