1-Gallon; 128-ounce water capacity, Ideal for cats and dogs of all sizes * Patented free-falling stream entices pets to drink more, Wide, stainless steel bowl is easy to drink out of * Replaceable charcoal filter removes bad tastes and odors, Receiving ramp reduces sound and splash of falling water * Low voltage, 12-Volt submersible pump for safe, quiet operation, Dishwasher safem, excluding pump * BPA Free and UL Listed, For indoor use only