Kalita 185 serves 2-4 cups (about 500-700ml) at a time. Made of stainless steel. The flat-bottom coffee bed geometry, patented "Wave" filter, and three-hole design work together to provide an even extraction that makes brewing a perfect cup accessible and easy. Brew directly into a cup, or mount it on a brew stand. The Kalita Wave dripper pulls a rich, evenly extracted cup. Requires 185 Kalita Filters.