When you use these Premium Charcoal Filters, you'll be sure that your pets are getting clean, fresh and clear drinking water. They help you to provide sparkling water for your pets because the water is cleaned by the charcoal. Drinkwell fountain filters are segmented into six compartments to facilitate filtration and reduce the possibility of the charcoal settling within the filter. The duo-density pad on each one captures hair and debris, along with removing odors and eliminating bad taste. These pet water filters come in a package of 10 and are compatible with Drinkwell Original, Platinum, Big Dog, Multi-Tier, Outdoor Dog, Mini and Zen water dispensers and fountain products. Remembering to change them out every two to four weeks will ensure that your pets get the freshest hydration possible. These will provide water without any stale tastes, discouraging odors or annoying mineral particles in the way. Make the most of your dog's water situation with Premium Charcoal Filters.