The new patent-pending Petmate UV Light Infinity Automatic Purifying Cat Fountain Waterer is a superior, reliable fountain that uses an ultraviolet light to continuously blast bacteria & waterborne pathogens, providing healthier & cleaner filtered water throughout the day. In addition to the UV light, the unit uses a two-stage filtration system to clean the water, including a bowl strain to remove larger particles & a carbon filter for smaller debris. The re-circulating flow & filter provides naturally cool & oxygenated water, attracting pets to drink more in order to help promote their health & wellbeing. Featuring an ultra-quiet cascading waterfall, pet parents can easily adjust the water flow speed to suit their pets preference. Easy to clean & maintain in any living space, is the UV Light Infinity is also sleek & modern in design to blend in with todays kitchen appliances. And, to provide fresh & clean water all the time, 3- & 6-pack filter replacements are available.