Aura Solar Retrofit Fan | 4″ Diameter | Model ASF-4-RF


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4 Inch Aura Solar Retrofit Fan | Model ASF-4-RF

The 4 inch Aura Solar Retrofit Fan is 4 inches in diameter. The model ASF-4-RF exhausts air out at 91 CFM. The Retrofit is designed to fit over an existing base as a replacement fan.


  • Keeps your home comfortable and energy efficient
  • Works passively with the wind when there is no sunlight
  • Inner louvers prevent insects and animals from entering the vent
  • Round aerodynamic design can withstand harsh weather


Aura Solar Fans are a perfect replacement fan for roof wind turbines which frequently stop working due to corrosion. The Aura Solar Gravity Retrofit does not need to spin in order to provide excellent ventilation. Instead, it exhausts heat using both solar and wind power.

It also works passively by using the Venturi Effect which happens when the wind blows against the outer louvers. As a result, this creates an upward draft allowing air to freely flow in and out of the vent.

How it works:

The vertical louvers continually exhaust air while preventing rain and snow from entering. These louvers also keep out insects and animals allowing for optimal airflow. In addition, the round design is aerodynamic to withstand wind speeds up to 200 mph.

The Aura Solar removes hot air from the attic in the summer and moisture in the winter to provide optimal ventilation. The Retrofit Vent head will fit over an existing base of the same diameter.  This allows for quick and easy installation. The ideal replacement fan.

Roof turbine parts wear out, even if they are balanced perfectly. If a roof turbine is making noise, it is slowing down because it is wearing out. When it slows down, it is likely to start allowing rain and snow into the attic.

For any questions please see the frequently asked questions page. If you still have questions, email the sales team at [email protected] or call 845-565-7770

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Base Price (Not Including Shipping and Options):


Tandem Solar Panel Options:
An additional solar panel is available for all solar fans

Our products can be painted with a durable baked-on powder coating surface finish.
Click in a color square to choose a paint color.
Click "Premium Colors" to see the full set of color options.

Brand: Active VentilationUPC(GTIN): 843951005188 SKU: ASF-4-RF Category:
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