OEM Manufacturer & Exporter of HHO Engine Carbon Cleaners.System Clean Green Lab Limited is a UK based manufacturer of Hydrogen Engine Carbon Cleaners, we have developed and our latest machine called the Max Cube which have twin independent hydrogen outlets which can clean two cars at the same time or interdependently or it can clean an engine with a "V" configuration such as a V6, V8 or V12 where there are two separate inlet intake.System Clean Green Lab Limited is also happy to produce our machines with the names of any company willing to become a distributor.See our unique Cube Max on our website: www.scgreenlab.co.uk