Drinkwell Outdoor Carbon & Foam Replacement Filter Combo Pack
My cats love this enormously. In fact while I am at the sink cleaning it I have 2 that are constantly "telling" me to hurry up. I have also heard these kind of constant flowing drink machines are great for preventing UTI's..and Sweets gets those constantly. I have noticed a difference sine I have bought it. I have had it I think a year and I believe he has only had 2 UTI's since then. He used get them all the time.