Chemex Glass 40 Ounce Coffee Maker with Cover and 200 Count Bonded Unbleached Pre-Folded 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 Filter is folded into a cone shape Assures uniform extraction since the water filters through all the grounds on its way to the apex of the cone