(4 Pack) PetSafe Drinkwell Carbon Replacement Filter, Dog and Cat Water Fountain Filters (4 Packages each containing 3 Filters / 12 Filters Total)

PetSafe Drinkwell Replacement Carbon Filters keep your pet's water tasting clean and fresh. Each filter features a duo-density polyester pad that catches hair and debris, while the carbon removes bad tastes and odors from the water to make it more appealing to drink. Filters help extend the life of your fountain and pump and should be replaced every 2 to 4 weeks.