Drinkwell Hy-Drate Replacement Filters For Pet Dogs Water Fountains - 3 Pack

These replacement filters are for the Drinkwell hy-drate Filtration System for Cats and the Drinkwell hy-drate Filtration System for Dogs. It is recommended you replace the filter every two to four weeks. Activated carbon filter removes chlorine odor and small particles. These filters work with all hy-drate products.