Rojeco Replacement filters for water foutian 8pcsRojeco drinker filters 8pcs. Be sure that your pet always has access to healthy, clean, fresh water. The included Rojeco drinker filters will help you do that! The activated carbon and ion exchange resin filter effectively eliminates heavy metals and contaminants, while the sponge filter traps hair, fur and other larger debris. Before using the products, immerse them in water and clean them. To ensure optimal filtration performance, remember to change