Keep fresh coffee available around the clock with the Grindmaster 3 Gallon Single Automatic Coffee Urn (7713E). This coffee machine has a 3 gallon capacity, with an automatic refill feature, and can produce 14 gallons of coffee per hour. It also has 4 different operational settings depending on the situation. The Grindmaster - 7713E - 3 Gallon Single Automatic Coffee Urn utilizes a closed brewing system to reduce the amount of steam and noise generated during brewing, and has a spray arm that is coated in Teflon to reduce lime buildup. The 7713E is UL and NSF listed.