Bezzera Knock Out Waste Tube DS86L.The Bezzera Knock Out Waste Tube DS86L is a professional barista accessory designed to make espresso puck disposal fast, clean, and efficient. Constructed from heavy duty stainless steel with a reinforced rubber knock bar, it is built to withstand the daily rigours of busy cafs and hospitality venues. Its large capacity design makes it suitable for high volume coffee service, while the non slip rubber base ensures stability and protects work surfaces.