24-Hour Solar Powered Ventilation

Circulates fresh air in boat cabin… Protects against mold, mildew and musty air.

Moves over 800 cubic feet of air in an hour or 19200 cubic feet of air a day (3” model). With direct to deck installation it easily replaces any existing 3” NICRO vent product. The Day/Night Plus has complete air and green water shut-off from below, as well as a built-in on/off fan switch.


  • Rechargeable battery allows for 24-hour continuous operation
  • No wiring required
  • Easily replaces any existing 3” NICRO vent
  • High capacity NiMh battery operates vent for up to 40 hours without sunlight
  • Direct to deck installation
  • All mounting hardware, interior trim ring, and insect screen included
  • 2 year limited warranty
  • Interchangeable intake and exhaust fans
  • Whisper quiet fan operation
  • Vent Diameter: 3"
  • Cutout Diameter: 3-3/4"

Availability: In StockUsually ships In 1 Business Day - More Shipping Info

3 inch Day/Night Vent with Stainless Cover

  • The Solar Vent is not recommended for any applications other than marine vessels.For other applications such as RVs, cabins, or tiny houses, we recommend either the mushroom vent or the PVC Vent Assembly for Structures, coupled with either 12V battery or the 12V-110 converter.

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