Cone-shaped filters ensure uniform extraction for pure coffee flavor. The thicker (20-30% more than the competition) specialty fiber filter design keeps bitter elements, oils, and grounds in their place (and out of your cup). Prefolded for convenience, filters will fit most other cone-shaped filter coffeemakers. Fits all CHEMEX® Coffeemakers except CM-1, CM-1C, CM-1GH. Includes 100 filters.