The Delonghi 5313230311 Espresso Machine Tube, designed for those who appreciate the perfect brew. This tube, with a 5mm inner diameter and 9mm outer diameter, is 170mm in length, ensuring precise compatibility with your espresso machine. Crafted with high-quality materials, this tube, also known as Sil Nat, guarantees optimal performance and durability. Whether you are a coffee connoisseur or a barista in the making, this essential accessory will elevate your espresso experience to new heights.