3" Day/Night Solar Vent - WhiteThe design threads into the included deck plate, and is removable from outside without tools. On/off fan switches, LED lights, and intake/exhaust switches are accessible from inside the cabin for ease of use...

3" Day/Night Solar Vent - Stainless SteelThe design threads into the included deck plate, and is removable from the outside without tools. On/off fan switches, LED lights, and intake/exhaust switches are accessible from inside the cabin for ease of use...

4" Day/Night Solar Vent - Stainless Steel Features:Circulates fresh air in boat cabin eliminating mold, mildew and musty air Moves 1,000 cubic feet of air/hour or 24,000 cubic feet of air/day (4" model) Rechargeable battery allows for 24-hour...