TSR1 and TSR2 Thermal Server Racks that hold 1 or 2 servers An appealing easy to use self-service coffee system. Modular design for display and dispensing of a large selection of specialty coffees. Holds one or two 84.5 oz. (2.5 litre) thermal servers without bases. Made of durable easy to clean plastic. Drip trays to catch spills and keep serving areas clean.