Did you know that some cats refuse to drink water if it's been in their bowl for over a day? The Petmate® Deluxe Fresh Flow® is a purifying pet fountain providing free-flowing filtered water throughout the day for your cat. Perfect for multiple cat households, this award-winning fountain features continuous circulating water and a unique, patented no-splash waterslide. The re-circulating flow and filter provide naturally cool and oxygenated water, attracting pets to drink more in order to help promote their health and well-being. The AC adapter plugs into any standard household outlet. Each unit includes two replaceable charcoal filters. To ensure freshness we recommend that the filter is changed every thirty days. For assembly and maintenance instructions, visit petmate.com/waterer-instructions SPECIFICATIONS Dimensions--10.8" x 7.5" x 5" Capacity-50 oz Product Weight-1.75 LB WARRANTY One Year Limited Warranty