Brew fresh gourmet coffee without hacking or modifying your Keurig® brewer. Compatible with Keurig® 2.0 machines and most 1.0 brewers, including K200, K250, K300, K350, K400, K450, K460, K500, K550 and K560. Some older models do not work with this product such as the B30, B130, B150, B145, B155, Mr. Coffee BVMC-KG5 and Vue.