Rhinowares Thumpa floor standing knock tubeNo discussion on the best knock box tube at this moment. At Caffenation we use these since many years and we can't imagine a life without it. It's more silent, ergonomic, stronger, easier en it takes less space. What do you want more? This Thumpa is an 860mm tall knockout tube which was designed with durability in mind. Commercial coffee waste bins need to withstand being hit, bashed, and dropped without coming apart. The Thumpa is virtually