JoeFrex's drawer knock box metal is perfect for commercial users or serious home baristas. It can be installed under an espresso machine or espresso grinder and therefore makes a remarkable space saving, neat knock-out option. The knock bar is rubber coated to reduce damage to your filter holder.
Available in 3 sizes:
Mini: 5.12" W x 8.66" D x 3.15" HSmall: 7.68" W x 10.63" D x 3.54" H
Medium: 10.63" W x 11.81" D x 3.54" H