Marinco Day/Night Solar Vent, 4" Stainless Steel

Threads into included deck plate, and is removable from outside without tools. The whisper quiet Nicro Day/Night Solar Vent moves over 1000 cubic feet of air in an hour or 24,000 cubic feet of air a day (4" model). On/off fan switch, LED lights and intake/exhaust switch accessible from inside the cabin for ease of use.