1.Stainless Steel Cat Water Fountain: pet water fountain entirely is made of 304 stainless steel, it is BPA-, rust and corrosion resistant. Only the stainless steel part can be washed in the dishwasher, easy to clean. 2.Transparent Water Level Window: The cat water fountain has a capacity of 3.2L, with high and low water level lines marked in the container, which is enough for multiple cats and dogs to drink at the same time. The f is equipped with a Transparent water level window, and the remaining water volume can be easily seen through the window, which helps to add water in time, so you don't have to worry about forgetting to add water anymore! 3.Double Filtration System: The pet water dispenser is equipped with a double filtration system, consisting of an activated carbon filter and a replaceable round filter sponge. The external foam filter of the pump can filter impurities and capture hair, while the activated carbon filter can remove odors and soften water quality, improving taste and providing purer and fresher water for your lovely pets. 4.Ultra-Quiet Water Pump: This stylish and exclusive stainless steel cat fountain features an ultra-quiet (below 20dB) and 1.5W low-power pump. The sound of the pump is almost inaudible, providing no interruptions in doing anything at any time and a good night's sleep for you and your pet.