UP stands for updated! Version 2 represents the new and improved design of the new thermoblock produced for this newest version. The thermoblock is designed of aluminum for fast warm up times and thickness for good temperature stability. The inside pipe for which water comes in contact for heating is made of stainless steel. This is advantageous since the thermoblock in this case is less prone to limescale build up from magnesium and calcium - limescale is a major factor in causing problems on espresso machines. The other advantage is the aluminum avoids 'pitting' in cases where purified water is used. Version 2 machines also have a microprocessor that pulsates the pump so water in the reservoir continuously fills the thermoblock for continuous steam - until the reservoir runs near empty. Features Simple to Use Controls. Temperature Gauge. Quality Brewing Group. Three way solenoid valve. Heavy Duty Coffee Holders and Filter Baskets. 48 oz. Water Tank. 16 Bar Water Pump. Drip and Cup Tray, Plus Cup Heater. Stainless-Lined Aluminum Thermoblock. Construction with Longevity In Mind. Color - Love Red. Dimension - 11 x 9.6 x 13.6 in. Specification Tamper size - 57mm. Water tank - 1.5 liters. Voltage - 120V. Power - 1000W. Pump Pressure - 16 bar. Coffee thermostat - Boiler 100o / Thermoblock 95o. Steam thermostat 140o+ Safety Thermofuse. Steam pipe protector / Cappuccino/hot water pipe. Brass portafilter holder - 57mm. Three prong plug.