Power Duct & Copper Brush is equipped with 3HP or 4 HP fan motor and 150 Watts drive motor. The Duct & Copper Brush is available with suction capacity of 260 mm of water column. The Duct & Copper Brush is designed with two 125 mm blowing pipe and four 100 mm suction pipe. The Power Duct & Copper Brush is available with filter area of 0.14 sq. M and straight, curved or circular travelling path.