Made of high-strength polyurethane with
non-deformable memory foam.
Can be stacked on top of existing knockbox tubes
with ø 30/40 mm.
Adjustable in length with incisions for cutting
to size from 310 to 180 mm.
Trukj tube cover consists of 2 sections:
- One smooth for beating coffee grounds and
- One with flaps for cleaning coffee residues
on the edge of the filter holder unit.
Deformed and dirty knockbox tubes
Cleaning coffee filter edge with a sponge