RUNTAL FOLIO meets every possible expectation when looking for a lightweight yet extremely rigid radiator. At the heart of this designer radiator lies a copper heat registry. This is embedded in an aluminum honeycomb structure that is encased in expanded natural graphite. It was precisely this special new design and the innovative manufacturing technique that made it possible to develop an extremely thin and ultralight radiator without compromising on performance. The radiator offers impressive design performance and the fully enclosed surface creates an extremely compact yet sophisticated and lightweight look.