Cat Water Fountain Filters Replacement & Sponges (3 Filters+3 Sponges)

COMPATIBILE ONLY with Petlipo cat water fountain, like ASINs in Amazon.com: B0FVXPBX4N, B0GSQWZZ45, B0H38KJ35D. MAINTENANCE: It is recommanded 1 week to clean the filter and sponge, and replace them every 3-4 weeks. COMPLETE FILTRATION: Thanks to the design of the Petlipo water fountain, every drop of water will pass through the filter and sponge to provide your cat with fresh and clean water. EFFECTIVE FILTRATION SYSTEM: The cat fountain filters contain filter screen, non-woven fabrics, activated carbon and professional ion exchange resin, can effectively filter impurities, adsorb heavy metal ions to soften water and Reduce chlorine for better taste and odor. 2 MORE LAYERS, 2 MORE WEEKS OF USE: The filter screen can prevent larger pollutants like food residues, hair etc. and extend the life of the filter to 3-4 weeks. 3-Packs of filters can be used for 2-3 months.