Update configuration files] The cleaning disc is exactly the same as the original latest accessories of the Breville coffee machine. There is no water outlet in the center of the latest accessories , dont worry, there is a backflow device inside your machine. [Clean your espresso machine] Keeping your espresso machine clean is key to getting the best espresso every time. This rinsing disc is an effective solution to help you maintain optimal coffee flow. [Widely Compatible] This flushing disc, providing a wide range of compatible devices: for BREVILLE BES870XL BES860XL BES840XL BES450 BES500 BES878. BES880, GRUPPO IZZO, SPAZIALE, SAN MARCO, WEGA Color: black Material: Silicone Size: 54mm Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.