About This 【High quality material】: Ion Exchange Resin can soften water & reduce heavy metals.Coconut Shell Activated Carbon can absorb impurities & odors.Non-Woven Fabric can filter hair,debris & sediment.Sponge can block hair and debris.(The product uses more abundant materials) 【The Filter Compatible】: Veken 95oz/2.8L cat water fountain.(Filter size: 3.9x3.9x0.4in | Sponge size: 1.5x1.1x1.1in) 【Independent packaging, safe and hygienic】: The combination includes 10 cat fountain filters and 10 pre-filtration sponges. 【Method of use】: Soak the new filter in clean water for 10 minutes before using. The filter can be used for a long time, and for better results, it is recommended to replace it every 2-3 weeks. 【Note】: Depending on the cleanliness of the usage environment, there may be differences in the usage time of the filter element. The usage time of the filter can be appropriately shortened or extended according to the actual situation. Overview Material : non woven fabric, activated carbon, resin Product Dimensions : 0.31"D x 3.9"W x 0.31"H Item Weight : 0.39 Ounces Product Benefits : add activated carbon to efficiently purify water quality Brand : Generic