Festool Cleantec D27 (27mm) Hose Adapter to 2-1/4" ID Dust Ports, Slip Fit! This adapter is a friction fit between your D27 hose and 2-1/4" ID dust ports commonly found on jobsite table saws, Ridgid oscillating edge belt/spindle sanders (EB4424/R4840), and many others! This is the typical hose that arrives onn the CT Mini I, CT MIdi I, CT 15 E, CT 26 E, CT36 E, and CT48 E and can't connect to these larger dust ports out of the box. The adapter features a taper on the dust port side to connect seamlessly with a tight fit. As the Festool hose-side is tapered, we left that side a consistent diameter that is meant to be snug when fully inserted. This adapter is 3D printed from PETG which is able to withstand greater abuse and heat in the shop than compared to PLA while being more flexible. As common with all 3D prints, the adapters features a seam line but this is low profile and does not affect the function or performance of the adapter.