Replacement filters for Oneisall fountain.

Have confidence that the water your pet drinks is always clean, fresh and safe for health. Oneisall fountain filter consists of three layers that effectively eliminate odors, food residues, dander, heavy metals and other impurities. This way you don't have to worry about the condition of your pet! Before using the product, immerse it in water for two minutes. To ensure high filtration efficiency, remember to change the filter regularly - at least once every 4 weeks.