BUNN 27900.0001 Dual Soft Heat Brewer with Docking System Brews 16.3-gallon (61.7-liters) of perfect coffee per hour Brews 0.5-gallon, 1-gallon or 1.5-gallon (1.9, 3.8 and 5.7-liter) batches Server heat control automatically shuts off once target temperature is reached; range of 175190f (79.487.8c) Electronic grinder interface instructs grinder on exact amount of coffee for selected brew batch size Servers sold separately Brews 16.3-gallon (61.7-liters) of perfect coffee per hour Brews 0.5-gallon, 1-gallon or 1.5-gallon (1.9, 3.8 and 5.7-liter) batches Server heat control automatically shuts off once target temperature is reached; range of 175190f (79.487.8c) Electronic grinder interface instructs grinder on exact amount of coffee for selected brew batch size Product Built to North American Electrical Standards