Fantastic Vent Reversing Fan, Thermostat, Rain Sensor, Auto Open/Close

$446.00 $436.00

In our trailers these fans offer great ventilation with low amp draw. That means quick cooling and the ability to use your battery longer. The rain sensor on this thermostat-controlled roof vent ensures that the dome closes and the variable-speed, reversible, 12V fan shuts off when rain or snow hits. Powered lift eliminates hand cranking.

Available on backorder

SKU: 803350 Category:


Air out your RV after cooking or just draw in some fresh air while you sleep. This variable-speed ceiling fan operates in 2 modes: manual and automatic. The fan activates when you move the fan blade rocker switch to the in or the out position, which designates the direction of airflow.

When using the automatic mode, you can preset the fan to maintain a desired temperature inside your RV. The thermostat dial is color coded, with dark blue representing the coolest setting and dark red representing the warmest setting. The fan’s internal thermostat will sense the actual room temperature, and the fan will run until the preset temperature is achieved. When the temperature rises above the preset temperature, the fan will automatically kick on again. So when you go out, you don’t have to waste energy by leaving the vent running at full blast just to ensure that your RV is cool when you return. And because the fan will activate anytime that the preset temperature is reached, you can set up the system to ensure that your pets remain comfortable while you’re out.

To control the fan manually, turn the speed knob on the vent housing. There are 3 speeds: low, medium, and high. There is also an off position.

Power Lift and Rain Sensor
Fan Tastic Vent Lift Dome

This Fan-Tastic Vent has a powered lift arm for the dome, so you don’t have to manually crank it open or closed. The dome automatically opens when you turn on the fan. You can also use the small rocker switch on the vent housing to open and close the dome when the fan is not running. And a hand knob is built in so that you can operate the dome in the event of a power failure.

A moisture sensor ensures that the dome will close when rain or snow hits. So you can leave the vent running or preset it to run at a certain temperature, even if the forecast calls for rain. When the sensor gets wet, it signals the dome to close. With the dome closed, the fan blades will stop running. When the sensor dries, the dome will re-open and the fan blades will resume operation. To keep the sensor from activating in rain, snow, or humid and dewy conditions, simply add a vent cover (sold separately) to block moisture.



  • Roof vent with reversible 12V fan pushes stale air out of and pulls fresh air into your RV, camper, or enclosed trailer
  • Variable-speed fan offers 2 modes of operation
  • 3 Manual speeds let you boost or reduce airflow as needed
  • Automatic, thermostat-regulated settings conserve energy by running only when preset temperature is reached
  • Rain sensor signals dome to automatically close and fan to shut off when wet
  • Powered arm opens and closes hinged dome – no hand cranking needed
  • Fan resumes when sensor is dry
  • Knob on vent housing allows you to operate dome by hand in case of power failure
  • Pop-out screen keeps insects out and easily detaches for cleaning
  • 10 Clear fan blades allow sunlight into RV
  • Smoke-colored polyethylene dome filters UV rays while allowing light in
  • White interior polypropylene trim (or garnish) and roof flange are included
  • Smooth edges won’t cut you during installation
  • Simple installation with 2-wire design
  • Low Amp Draw
  • Hardware included

Made in the USA

Installation & Specs

This vent requires a 14-1/4″ x 14-1/4″ opening in your trailer’s roof and ceiling. To replace an old vent, install this vent into the existing opening. If your roof does not already have a vent, you will need to mark and cut an opening between roof joists to install this unit. And the 2-wire design makes it easy to have your vent hooked up and ready for use.

Application: RV, camper, and trailer roofs up to 4″ thick
Rough opening size: 14-1/4″ x 14-1/4″
Vent extends above roof:
4-1/2″ When closed
11-1/2″ When open
Fan motor:
Voltage: 12 volts
Low – 478 CFM @ 1.86 Amps
Med – 653 CFM @ 2.29 Amps
High – 920 CFM @ 3.00 Amps

Factory Warranty

2-Year limited on vent assembly
Lifetime on dome (lid)


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