Great Northern Black Kegerator Beer Dispenser Refrigerator Premium Dual Gauge System. Two gauges tells you the PSI in the line and how much CO2 is left in the cylinder. Large Capacity CO2 Bottle. Designed to supply up to 4 large kegs. Performance Grade C02 Delivery System. Designed to keep beer fresh up to 3 months. Sleek and Stylish satin black design. Heavy Duty Construction. High impact materials and 4 heavy duty caseters for portability!