Rockline® Industries Brew Rite® 12-Cup Paper Coffee Filters are designed to work with Bunn and other drip brewers. A case of Brew Rite® 12-Cup Paper Coffee Filters contains two individually wrapped sleeves of 500 filters each. Individually, each Brew Rite® 12-Cup Paper Filter measure 4 ½ inches in diameter at the base and 2 5/8 inches high. Rockline® Industries is a leading manufacturer of retail and commercial coffee filters in North America. The Brew Rite® 12-Cup Filter model ROC48101 uses paper with a crepe texture designed to remove the bitters oils and loose sediment found in ground coffee while allowing the full flavor, aroma, and body of the brewed coffee to pass through. The Brew Rite® 12-Cup Paper Filter is considered a basket style filter.