Set of 4 replacement filters for cat water fountains with resin and activated carbon for automatic pet water dispensers

Powerful filter: The cat water fountain filter uses plastic as the bottom shell and consists of a layer of cotton, activated carbon, and ion exchange resin. They can remove impurities from tap water and any debris your pet brings into the cat fountain, and improve the taste of the water, so your pet can drink clean and healthy water. Replacement: Please rinse the cat fountain filter with running water each time you change the fountain water and replace the fountain filter every 2 to 4 weeks depending on how often your pet drinks and the number of pets using the cat fountain. Recommendation: Before use, please soak the cat fountain filter in water for 10 minutes and rinse it thoroughly under running water. The set includes: 4 premium cat fountain filters, individually wrapped and sealed to maintain superior quality. Perfect compatibility: This pet water fountain filter is compatible with the 3.5L stainless steel cat water fountain model shown in the picture.