Diameter ~330mm max / min 280 Fan Type is Axial- Depth 95mm max Nominal Voltage 24DC, possible supplier can change Brushless Motor Voltage range 16~ 32 m^ 3 / h Volume: 2000 @ 425 Pa (cfm 1177@1.7 inchesH20) 1.7 inches = 43.18mm Flow rate at pressure** simultaneous