This filter is specially designed for【Hengu Water Fountain for Cats Dogs Kitten, 2L Ultra Quiet Drinking Water Dispenser Fountain with LED Night Light and Auto Shut Off Function】. Fulfill the requirement to replace the filter to keep the water fresh and clean. - With a double action water softener filter for ion exchange resin + activated carbon, it can effectively filter the dirt. - Filters can remove chlorine from water, impurities and odors, trap hair and debris, make fountain water fresher and taste better.< /p> Replacement frequency: Replace the filter every 2-4 weeks. Size of each filter: 8.7cm (Length) x 5.8cm (Width) x 1cm (Height) Note: Please rinse the filter thoroughly with water before using. Please remove excess charcoal dust before use.
