Petsafe Drinkwell Ceramic Filters 4pcs - replacement carbon filters for the Butterfly fountain

PetSafe Drinkwell Ceramic Charcoal Filters are replacement charcoal filters for PetSafe water fountains. The set includes 4 pieces. The charcoal filter keeps the water clean by removing unpleasant tastes, odors, and impurities. Simply replace the charcoal filter during the cleaning of the fountain. Regular replacement is recommended every 2-4 weeks. PetSafe Drinkwell Ceramic Charcoal Filters are compatible with the following pet fountain models: Drinkwell Butterfly Pet Fountain.