Marinco Day/Night Solar Vent, 4" White

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.Rechargeable battery allows for 24-hour continuous operation; No wiring required; High capacity NiMh battery operates vent for up to 24 hours without sunlight; Circulates fresh air in boat cabin eliminating mold, mildew and musty air; Built-in on/off fan switch, LED lights and intake/exhaust switch; Threads into included deck plate and can be removed from outside without tools; Complete air and green water shut-off from below; Includes white plastic interior trim ring, insect screen, mounting hardware and installation manual; Replaces Nicro 4" snap-in deck plates (fits existing holes once snap-in deck plates are removed) and Day/Night Plus models