Aluminium Radiator DUBAL-45 8 Elements. Elemental radiator, manufactured in die-cast aluminium alloy. Reversible model. Special attention has been paid to the design, as this is the first time this dual aesthetic formula has been introduced. One side features the classic look of an aluminium radiator with front openings for high thermal performance, while the other replicates the elegant line of the well-known DUBA radiator, which Baxi Heating has successfully marketed in the European heating market.