What makes CHEMEX® Bonded Filters the real deal? Cone-shape ensures uniform extraction for pure coffee flavor 100 filters Thicker (20-30% more than the competition) specialty fiber filter design keep bitter elements, oils, and grounds in their place (and out of your cup) Prefolded for convenience Will fit most other cone-shaped filter coffeemakers Fits all CHEMEX® Coffeemakers except CM-1, CM-1C, CM-1GH Chemex Coffee System: CLICK HERE!