Everyone buys these fountains for cats! It is the perfect size for my boxer!! She absolutely loves it! We put it out on the deck on a sunny day, fill to the water line with both ice and water so the water stays nice and cool (less than 1/2 of it ice so that it has time to melt before they drink up all the water). Most fountains come with just one filter - this one comes with three!! And I really like the silicone mat that goes under the fountain - it keeps the fountain from sliding all over! There is a choice of three different flows - my boxer seems to really like the flower waterfall the best. Super easy to clean.