... high-quality steel plate stamping, light weight 16'' industrial exhaust fan sizes:10'',12'',14'' 16'' 20'' 24''dia:25cm,30cm,35cm ... ,40cm,50cm,60cm1.item no.:DF40-A12.size:16 inch ,40cm 3.power:127WRPM:1200-1350r/minstrong wall, portable ... and low noise Package information49*48*27.5cm 1pc/carton 16''industrial exhaust fan