Petsafe - Drinkwell The Premier Pet Replacement Carbon Filters - 4PK

The Premier Pet Replacement Carbon Filters remove bad tastes and odors, providing fresh, filtered water for your pet. To ensure the freshest water and a long-lasting fountain, it is recommended to replace your carbon filter every two to four weeks, but more frequently if multiple pets drink from the fountain. This pack contains four filters providing a three to four month supply for your fountain, ensuring your pet always has filtered water.