ECM Espresso Knock Box Tubing is an essential part of your espresso knock box, specially designed to maintain an efficient and trouble-free brewing process. This 20 mm x 10 mm x 155 mm silicone tube provides a perfect fit and is hypoallergenic, making it an ideal choice for coffee enthusiasts. With a bar hole size of 11 mm, it ensures that metal rods glide easily through the tube, allowing for more effective tamping of the coffee grounds after brewing. This durable and reliable tubing is a necessary upgrade for anyone looking to optimise their espresso experience. Whether you are a professional barista or a home brewer, this tubing will help you keep your espresso knock box in perfect condition, so you can focus on brewing the perfect cup of coffee.