Premium Bowknot Shape Pet Water Fountain Filter Sponge Set ensures great water purities by effectively trapping impurities and hair with sponge, specifically for 7L stainless steel pet fountains Great for pet owners searching easy maintenances solution for automatic water dispensers, this filter replacement simplifies routine cleaning and enhances appliance longlasting use Keep your pet companion hydrated with consistently clean water of home use, replacing during monthly maintenance cycles without disrupting daily routines Engineered with cut and filtration layer, this pet fountain accessory preserving water flows efficiency in stainless steel pet water dispensers Selected nonwoven fabric construction ensures safe filtration, maintaining clean drinking water while ensuring perfect with your existing fountain systems