Expobar Office Leva Product Features and Specifications The Expobar Office Leva is one of the most affordable traditional heat exchanger 1 group espresso machine with a EB-61 leva group (which weighs 4.2kg alone). It has a 1.5 Litre copper boiler with a massive 2000 watt element enabling plenty of steam production. The body is made from 2mm thick stainless steel. The Office Leva features a stainless steel steam tap and hot water tap. It comes with an internal water container and vibration pump. There is the option to convert this machine to a commercial motor with a rotary pump which enables it to be connected to the mains water supply - please choose this option from the drop down box at the top of the page if this is required. This conversion is done by Expobar direct and takes around 1 week to do. Please be aware that if you do proceed with the conversion all associated plumbing costs and necessary alterations to your bench top (holes for drainage pipes to connect to main water supply) are incurred by th