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