High Quality: Every filter for cat fountain is composed of a cotton layer, activated carbon, and an ion exchange resin. It can effectively remove impurities, filter hair, chlorine, heavy metals and odours.
Economic Pack: Carbon filters set includes 12 pack of cat fountain replacement filters , encourages your cats and dogs to drink more, helping them replenish moisture and keep healthy.
Filter Frequency of Replacement: We suggest to replace the pet fountain filter 2-4 weeks to keep the water fresh and clean.
Please rinse the filter with water thoroughly before use. Replace every 2-4 weeks.