THREE-SPEED FAN - This lightweight, compact and durable vent fan seals tight when not in use. Powerful 12 in, 10-blade fan quickly moves air in and out of the cabin. The core of this truly fantastic ventilation solution is a high performance rotary fan that features three blade speeds; low, medium, and high | ACHIEVE THE IDEAL ON-BOARD TEMPERATURE For true comfort at your convenience, the Fantastic Vent has a built-in thermostat to take care of maintaining your desired temperature | REVERSIBLE AIRFLOW - The powerful yet compact Dometic Fantastic Vent has fixed, manual speeds or automatic variable speeds to get the airflow precisely as you want. It's simple reverse switch changes the fan direction, drawing air in or out of the vehicle | NO NOISE - Warm and stale air out, fresh and clean air in. Dometic FanTastic Vent does it in a matter of minutes. Its pleasantly quiet and energy saving, too | PERFECT FIT - Fits standard 14 inch x 14 inch openings. White, high profile base and smoke dome. Lifting knob to open manually.

Fan-Tastic 802250 Model 2250 Roof Vent Manual Lift with 3-Speed/Reverse/Thermostat White with Smoke Dome Select speed (1-low, 2-medium or 3-high). Placing the IN/OUT switch in the center (neutral) position can turn off fan blade. Garnish included with the vent is 4-1/2". Three Speed, Reversible with Built-In Thermostat This model has a built-in thermostat. The fan will operate at one of three preselected speeds when the thermostat calls for cooler air. Once the thermostat is satisfied, the fan shuts off automatically. Designed to ensure consistent temperatures. Perfect for use when you leave your pets behind or while sleeping. Technical Information: Durable, proven longevity Quiet, 12 volt ceiling fan with 3-speeds Polycarbonate dome/Lifetime guarantee Removable screen for easy cleaning Reversible fan blade motor (in or out) Low AMP draw insures full-time use Optional insulated dome Specifications: Rooftop weight: 11lbs. Dimensions: 16 1/2 x 16 1/2 x 3 1/2* CSA / UL Certified (Fits standards Opening) * Production since 11-1-2000. Previous height was 4 1/2" THANKS FOR LOOKING!