Replacement filters for the Wireless KittySpout 2.0 Filtration Efficiency: Each filter works to maintain water clarity by removing impurities, while the pre-filter sponges are effective at capturing hair, dust, and food particles before they reach the main filter. Quality Materials: Constructed from non-toxic materials. Usage Instructions: Prior to installation, it's important to soak and rinse the filters thoroughly with clean water. For optimal performance, clean the filter with every water change in your pet's fountain and replace the filter and sponge every 2 weeks. Set Name Wireless KittySpout 2.0 Brand Name KittySpout Unit Count 1.0 Count Manufacturer Kittyspout Model Number FLT89 Material Type cotton Number of Items 8 Product Benefits Removes impurities and maintains water clarity consistently Included Components filters & sponges Item Dimensions D x W x H 4 D x 3.5 W x 4 H External Testing Certification RoHS, FDA