Special paper grade assures optimum extraction of coffee's taste. Oxygen processed for best coffee flavor. Perfect for coffee requiring exact brewing, like decaf and flavored coffee. Superior stay-in place design prevents coffee grounds overflow. Heavy weight paper, so the water flows properly through the coffee. Filters are uniquely designed for strength so the sides are taller. Filter fits 12 cup coffee brewers (Bunn Commercial Coffeemakers). 250 filters per box.