16-Pack Cat Flower Fountain Filters, One 3.2L Stainless Steel Cat Foam Sponge

Size: The sponge's inner diameter is 6 cm. Measure your fountain and check if the filter can be integrated before ordering. Compatibility: Compatible with the 3.2L stainless steel round cat fountain. Easy to use: Easy to install. Rinse the filter with water before use. Tips: We recommend changing the replacement filter every 2 to 4 weeks to keep the water clean. Always ensure the health of your pets' drinking water and help your pets enjoy drinking water.