Pet water fountain, replacement filter, cordless pump, cat and dog water fountain, WF20/CF20

Compatibility: Works only with Homerunpet fountains; will not work with other brands. Compatible with the Homerunpet Wireless Pet Fountain (model: WF20). What's Inside: Choose from a 3-pack or a 6-pack. Fresh, running water is preferred by your furry friends all day long, so this is highly recommended for families. Triple Filtration: The filter is made from coconut-based activated carbon sandwiched between two layers of cotton mesh. It can remove invisible particles from drinking water such as hair, heavy metals, and residual chlorine, protecting the health of your pets' drinking water and reducing the risk of urinary tract infections. Instructions: After unpacking, please soak and rinse the filter for 2 minutes in water. It is recommended to replace the filter component every 30 days, depending on how often your pet drinks and the number of pets using the fountain.