DescriptionThe cat water fountain filter is constructed of sponge and with a unique shape, ensuring break and practical usage, guarantee to safe use. The pet fountain filters have nice filtration, easy to install, with a simple installation process for using.Features- Color: As shown - Material:Sponge - Size: 10.90X4.50X2.50cm/4.28X1.77X0.98in - Made of sponge which features with stability and durability,very hard and smooth for usage.- Unique shape cat fountain filter is soft and lightweight, effectively filtering impurities in water.- Cat fountain filter, with strong adsorption capacity, effectively remove odor and chlorine in water.- Cat water fountain filter is easy to install and replace, no tools required, convenient and practical.- Pet water fountain filter make pets drink clean or fresh water, you could use them with confidence.