General description These 16-pack foam pre-filters and carbon filters are designed to provide cleaner, healthier water for your pets. They are compatible with various PetSafe Drinkwell fountains, including the INOX 360, Avalon, Pagoda, and Sedona models, as well as YMYNY cat fountains. By using these filters, you can extend the life and flow of your filter pump. Technical specifications Pack includes 16 foam pre-filters and carbon filters Compatible with PetSafe Drinkwell INOX 360, Avalon, Pagoda, and Sedona fountains Also compatible with YMYNY cat fountains Usage Change the foam pre-filter and carbon filter every 2-4 weeks, depending on usage Other information This replacement cat fountain filter is not sold or manufactured by PetSafe Drinkwell Avalon Pagoda Seascape Sedona.