Pack of 12 cat water fountain filters, replacement fountain filters compatible with PETLIBRO

Keep your pet healthy: Each water fountain filter is made of a layer of cotton, activated carbon, and ion-exchange resin. It filters out hair and heavy metals, improving the taste of the water. This allows your pet to drink clean, fresh water all day long, contributing to better hydration and reducing the risk of urinary tract infections.Filter optimization: This water fountain filter comes with a small sponge. Adding a pre-filter sponge around the pump helps to better filter impurities and extend its lifespan.Tip: For best results, soak the filter in water for 5 minutes before use. Rinse it under running water before use to remove excess carbon dust. We recommend replacing the filter every 2 to 4 weeks, depending on the number of cats using the fountain.