The countersink kit is designed for DE1XL and DE1XXL models. With this kit, the machine cables are hidden under the surface for a cleaner look. You need to buy a drain kit (with the central dripping tray) and reserve a worktop cut out for this installation.
If your machine does not have a central draining tray, you will need to purchase one. You will also need a draining tube connecting the drip tray to an outlet. Choose a suitable length depending on your setup.