?HIGH-VELOCITY FLOW?- The tremendous flow rate of 1500 m³/h is designed to quickly and efficiently ventilate or extract the maximum air. The motor speed can reach 2800 r/min, stable, and robust. ?SOLID CONSTRUCTION?- High-quality blades and steel housing construction for long-lasting performance, the aluminum-made motor casing is more durable yet more lightweight. 2 high-density protective covers to ensure the ventilation blower continuous working, low noise, less vibration. ?FLEXIBLE PVC DUCTING?- The ventilation hose is made of wear-resistant, soft vinyl weaved polyester fiber, with carbon wire spring and tape, and the inner wall is smooth. The design has super elasticity and flame resistance. ?COMPACT & PORTABLE?- The cylinder fan has a compact structure, easy to store, with handle, lightweight, easy to move and transport. 4 rubber feet ensure stable support on most surfaces. ?EXTENSIVE USE?- Our 8-inch cylinder blower fan together with this heavy-duty duct is designed for ventilation applications in factories, basements, farms, chemicals, tunnel, automobile manufacturing, etc.