Filters and aerates continuously moving water to keep it much fresher than standing bowl water. It satisfies the urge for running water and so helps eliminate jumping on counters in search of dripping faucets. Even cats who don't jump on counters to drink from faucets may drink more water using the Fountain. Why is this important? As the veterinarian who created the Fountain for her own cats knows, many cats may not drink as much water as they should. This is one reason the urine becomes so concentrated and predisposes some cats to urinary tract disease. Cats with urinary tract or kidney disease have a critical need for water to support kidney function or prevent crystal formation and obstruction. The DRINKWELL PET FOUNTAIN is veterinarian designed and recommended by vet urinary specialists. It encourages water intake and proper hydration in healthy cats, and is especially beneficial in cats with kidney or urinary tract disease. AND it discourages jumping on counters in search of dripping faucets! Drinkwell Fountain + 50 Oz Reservoir