The BrewTool knockbox is a great accessory for any coffee lover. Designed for use with espresso it can be used with any brew type.
Empty your grinds in the knockbox, and easily add them to compost.
Box size: 160mm height, 145mm depth, 150mm width.
Knock box size: 135 mm diameter with depth of 130mm
Made out of durable black plastic, the knock bar is a solid metal construction covered with a rubber to absorb the knocking.