ECM Knock Box Drawer Slim Stainless SteelECM Knock Box Drawer Slim Stainless Steel A high quality knockout drawer from ECM made from perfectly manufactured polished stainless steel. The drawer features a sound absorbing bar to cut down on noise while knocking out your portafilter and is sleek and light enough to be positioned as you choose around your espresso machine. Emblazoned with the ECM logo, this knockout drawer pairs smartly with any ECM product. This is the slim drawer to fit in