This 48 ounce water reservoir is a replacement part exclusively for the “Elite” and “Classic” Brewing Systems. (Brewer is not included.) Compatible with Keurig B4x/K4x models. Please look underneath your brewer for the model number to ensure compatibility. Replacement 48oz Water ReservoirLID COLOR IS BLACKCompatible ONLY with B40 B41 B44 B45 B50 K40 K45 K50 Elite and Classic Brewing SystemsPlease look underneath your brewer for the model number to ensure compatibilityAuthentic Keurig Part Manufacturer: Keurig; Model: SYNCHKG077299; MPN: SYNCHKG077299; Part Number: SYNCHKG077299; UPC: ; Color: Black; Brand: Keurig; Department: ; Size: ; Warranty: ; Label: Keurig; Amazon Sale Rank: 3408;Buy On Amazon