These units have been in operation since 2015 and they not only look new but continue to operate as they did on the first day of operation. Why? These units are part of our Extended Warranty & Service (EWAS) program. EWAS continues the mechanical warranty and semi-annual service you receive with every new unit. The semi-annual service is conducted by a certified Vapex technician. The unit is thoroughly inspected, maintenance is performed, components are replaced (as needed) and complete documentation is provided to the customer. Now that is Radical! Contact your local rep or Vapex™ to find out why we continue to care and treat every unit like it is still in the factory. Be Radical!