Chemex Glass 30 Ounce Coffee Maker with Cover and 100 Count Oxygen Cleansed Bonded Square Coffee Filters Borosilicate glass coffee maker and cover with durable paper filters Coffee maker allows you to make coffee as strong as you like without bitterness Cover keeps coffee at the proper strength by preventing evaporation Assures uniform extraction since the water filters through all the grounds on its way to the apex of the cone Chemex filters are 20-30% heavier than competitive brands and remove even the finest sediment particles, and well as oils, and fats