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

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 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 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 MAINTENANCE: It is recommanded 1 week to clean the filter and sponge, and replace them every 3-4 weeks COMPATIBILE ONLY with Petlipo cat water fountain, like ASINs in Amazon.com: B0FVXPBX4N, B0GSQWZZ45, B0H38KJ35D