Keep clean water flowing in your Drinkwell® Outdoor Dog Fountain with this 3-piece replacement kit. This kit includes two plastic pre-filters and one replacement lid that attaches to the housing. The pre-filters help extend the life of your pump protecting it from debris like pet hair and drool. The cleaner your water, the happier your pet. Trust PetSafe® to help keep your pet healthy, safe, and happy. Features Compatible with Drinkwell® Outdoor Dog Fountain (ZWW00-17111)