Petsafe Drinkwell Pet Fountain features a free-falling water stream with adjustable flow control. Choose from nearly silent circulation on the lowest setting to a tranquil stream on the highest. The free-falling stream of water encourages your cat or dog to drink more which can help prevent urinary and kidney diseases. The pet fountain uses a carbon and foam filter to remove bad tastes and odors from your pet's water keeping it fresh. This BPA-free plastic fountain is top-rack dishwasher safe and specifically designed to have no hard to reach places to make cleaning easy.