Product picture - Lowell Manufacturing Fan Kit : 2-4.7" Whisper Fans, 50CFM Each, Fan Guards,Cord,Vent Blockers, for Lower Rack Lowell, Manufacturing, Fan, Kit, :, 2-4.7, Whisper, Fans, 50CFM, Each, Fan, Guards,Cord,Vent, Blockers, Lower, Rack Click the image to close this page