Keep your indoor compost bin functioning at its best with the InterDesign Indoor Compost Bin Charcoal Replacement Filters. Designed specifically for use with InterDesign compost bins, these filters help control odors and keep your home smelling fresh. The pack contains four filters, so you can replace them as needed and ensure your compost bin stays clean and efficient. Made with activated charcoal, these filters are highly effective at absorbing and neutralizing unwanted smells. With the InterDesign Indoor Compost Bin Charcoal Replacement Filters, you can enjoy the benefits of composting without any unpleasant odors or mess.