1. Latest 4Stage Filtration SystemOur pet water fountain designed with 4 filtration system (1 lon exchange resin, 1 highdensity cotton and 1 activated carbon carbon), easy to remove hair, dirt and food plus a prefilter sponge to catch the hair and debris. 2. Staying hydrated is important to preventing ney and urinary tract disease. And flowing water will prevent your cat drinking dirty water from the faucet or toilet. Our pet fountain is perfect for small to medium pet and all cats, 67 ounces/2 liters is enough for a cat to drink for almost a week. 3. Smart Pump and Super SilentThe latest pump is ultraquiet, staying below 30 decibels, consume little energy, it could last for more than 2 years. Moreover, the pump will automatically shut off once no water. 4. 3 Water Flower DesignsOur pet water dispenser has 3 modes: flower waterfall (faucet drinking), gentle fountain and bubble mode. You can use any model to satisfy your pets, 360° multidirectional streams aerate the water for added oxygen and freshness.