Replacement filters for Catlink Pure 1 (5 pcs)Replacement filters for Catlink Pure 1 water fountain Take care of your cat's health in a simple but effective way. The replacement filter is dedicated to the Catlink Pure 1 fountain and was created for pregnant cats and those dealing with kidney disease. Thanks to innovative technology, the product not only provides crystal clear and fresh water, but also removes harmful substances that can negatively affect the health of your beloved pet. Benefits