Package Contents: You will receive 16 pcs cat fountain filters &16 pcs foam sponge. Sufficient quantity to meet daily use needs Material: Pet fountain filter is made of activated carbon, PP cotton and black sponge. This cat fountain filter is reliable and useful. Can serve you for a long time Function: Our cat fountain filter has high density and high content of activated carbon, which can effectively filter impurities. Give cats and other pets access to cleaner water TIPS: Please rinse the cat fountain filter sponge with water before use and soak the foam filter sponge for 5 minutes. It is suitable to replace the sponge filter sponge every 2-4 weeks. Please note that you need to store the filter in a dry place
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