These Bartscher round filter papers with a diameter of 24.5 cm are designed for professional coffee brewing, providing a clean and efficient way to filter grounds in high-volume environments. This specific size is compatible with the PRO Plus 100T and Regina 90 percolators. Each white paper filter has a thickness of 0.01 cm, ensuring a consistent flow that maintains the quality of the brew. To support busy establishments and reduce the need for frequent restocking, they are primarily supplied in large packs of 1000 pieces, though smaller 250-piece options are also available for those with different storage needs.