Drinkwell Ceramic Fountains Replacement Charcoal Filters (4-Pack)

The PetSafe Drinkwell Replacement Filters are compatible with the PetSafe Drinkwell 1.8 Litre, 3.7 Litre, 7.5 Litre, Avalon, Pagoda and Sedona pet fountains. These filters keep your pet's water tasting clean and fresh. The activated carbon, made from coconut shells, removes bad tastes and odours from the water, making it more appealing for your best friend to drink. It is recommended that you replace the carbon filter every 2 to 4 weeks.