The BUNN 20900.0011 Dual Satellite Brewer with 1.5-Gallon Portable Server brews 18.9 gallons (71.5 liters) of perfect coffee per hour. An adjustable bypass ensures superb coffee regardless of batch sizes of 0.5, 1 or 1.5 gallons. The 1.5GPR portable server (included) has a patented Safety-Fresh brew-through lid with a vapor seal and spill protection. And the SplashGard funnel deflects hot liquids away from the hand. Brewer includes three settings and is 120/240V and requires 3-wires plus ground service rated 120/208V or 120/240V, single phase, 60 Hz with international electrical configurations available.