Key item features Commercial Compatibility: Designed for 12-cup commercial coffee brewers, these filters are suitable for use in offices and restaurants. Optimal Filtration: Made from heavyweight paper, these filters ensure an even flow of coffee and prevent grounds from overflowing during brewing. Chlorine-Free Whitening: The paper is whitened using an elemental chlorine-free (ECF) bleaching method, ensuring no detectable dioxin levels. Generous Quantity: Each order includes a case of 1000 disposable filters, providing a substantial supply. Precise Dimensions: The filters measure 9-3/4" in diameter at the widest point and 4-1/4" in diameter at the base.