Brand New K-cup Holder Replacement Part for Keurig B70, B75, B77, B79 K-cup Holder Replacement Part for Keurig Single Cup Coffee brewer B70, B75, B77, B79 The K-cup Holder is a part that holds the k-cup portion pack which contains coffee blends. Fits model: Keurig B70, B75, B77, B79