Multiple Filtering & Optimized Water Quality：Layered multiple circulation filtration for pet healthy fresh water. High-density and high-content activated carbon filter matched with white high-density cotton filter to achieve multiple filtration steps which effectively maintain the water quality, increase oxygen content and protect the health of your pet. Fully transparent & Easy to Clean：Transparent design, no extra bumps makes for a modern, beautiful shape. Clearly know the water level. Silent energy saving & Two modes：Under normal operating conditions less than 38 dB, pump noise control at about 30 dB. Spring and faucet modes for different pet drinking preferences. Built-in water shortage and power off pump to avoid dry burning. Circular flow & Healthy running water: Circular water flow design, floats hair and debris into the next level filter, drinking water position to maintain safe, clean drinking water.