... :25cm,30cm,35cm,40cm,50cm,60cm1.item no.:DF35-A12.size:14 inch ,35cm 3.power:97WRPM:1300-1450r/minstrong wall, portable ... Package information42.5*42.5*27.5cm 1pc/carton other size brief introduction Item No.SizePower(W)RPM(r/min)Packing ... in it,please contact with me,contact person:Donna Zheng 14''industrial exhaust fan