The King of Beasts has arrived. The BrushBeast DR air duct cleaning machine features an all new direct drive system. This new drive system eliminates the need for pulleys which helps reduce tension and extra wear on drive cables. In addition to a new drive system, the DR boasts a shocking increase in vacuum power when compared to other Rotobrush air duct cleaning equipment. With speed rotation settings, more power, and the use of less energy, the BrushBeast DR is the future of the air duct cleaning industry.