Dutypoint Element Ultra High Performance (UHP) 300 litre WRAS-approved unvented, indrect hot water cylinder. 6 Bar maximum operating pressure. Unit complete with high flow 28mm inlet control valve, 28mm outlet, temperature and pressure relief valve, HWS return connection, 60mm insulation, 3.0 kW immersion heater and 50 litre expansion vessel (supplied loose).