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Master Flow


Internet # 100548465

Store SKU # 220344

500 CFM Solar Powered Gable Mount Exhaust Fan

This item has been discontinued.
The Home Depot no longer carries this specific product.

$221.00 /each
  • 5 Year Parts Limited Warranty; 2 Year Labor Limited Warranty
  • No wiring required
  • Effectively ventilates up to 500 sq. ft. of attic space



Internet # 100548465

Store SKU # 220344

The Master Flow 500 CFM Solar-Powered Gable Mount Exhaust Fan will help remove excess heat and moisture from your attic to protect your roofing system from premature deterioration. The Solar Powered fan requires no wiring, uses no electricity, and works with your existing intake vents to help lower the temperature in your attic. The 24 volt DC brushless motor provides airflow up to 500 CFM and requires no maintenance. The impact resistant, 10 watt solar panel has a 10 ft. connecting cable included for installation on your roof and a tilt face design for maximum sun exposure. Recommended usage for this unit is one unit per 800 sq. ft. of attic space with a minimum intake ventilation of 240 sq. in. of net free area.

  • No wiring required – uses no electricity
  • Airflow up to 500 CFM
  • ETL Listed
  • Solar powered, operates ONLY in direct sunlight
  • No battery back-up – runs ONLY when panel is in direct sunlight
  • Environmentally friendly operation – Solar!
  • Also available in roof mount version (PRSOLAR)
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Cut-Out Diameter (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Color Family 
Color/Finish Family 
Galvanized Steel 
Power Type 
Product Weight (lb.) 
28 lb 
Reccommended Sq. Ft. 
Ventilation Type 
Voltage (volts) 
Wattage (watts) 
Wildlife Guard 
Warranty / Certifications
Manufacturer Warranty 
5 year Parts Limited Warranty; 2 year Labor Limited Warranty 


Rated 3.8 out of 5 by 20 reviewers.
Rated 3.0 out of 5.0 by Easy Gable Install minus humming noise This was a simple install. Made a rectangular frame from wood beam 2 by 4 to mount the fan to the side vent in the attic. Placed the solar panel on roof and connected through vent to fan motor. Presto! Fan moving quickly and removing the hot air from the attic. House has never been cooler in the summer. Downside: The fan has a humming noise! The noise is noticeable in the room below the fan! Not recommending this fan since I have to listen to this noise! July 11, 2013
Rated 5.0 out of 5.0 by Great investment Easy to assemble and keep my attic bearable , specially on over 100 degree weather. Help the ac work good July 8, 2015
Rated 5.0 out of 5.0 by solar attic fan this product is pretty nice. although when you see the box the fan is not as big as you think. installation is very easy but I suggest you buy some 2x4's to create a simple box frame to mount it on. in cloudy situations it still works, sun is just flies.its total air output is about 1000cfm. the same a large bathroom fan.the solar panel is 10watts and the motor is 17watts. if your a late morning sleeper or 3rd shifter don't install over a bedroom. during the morning sun it really goes and can be heard as a faint whirling noise through the ceiling. May 21, 2008
Rated 3.0 out of 5.0 by A little loud Unit was easy enough to install, however it produces a fairly loud humming noise and since its above my bedroom, its noticeable and a bit annoying unless I have my windows A/C unit running. It blows a fair amount of air, however it doesn't turn on as early as my other solar fan. It needs a little more light before it starts up. April 29, 2014
Rated 5.0 out of 5.0 by Solar attic fan I bought this a few years ago. It did not do so well with only one solar panel, So I bought a second. It works very well to air out the attic at my last place. It dropped the temp in the attic from 160 degrees F to 100 and cut 25-40$ off my cooling bill and the mold cleared up. I have moved to a place without and attic and use it in the foundations to dry it out and also move it to my work shed from time to time. It sure beats stringing electric cords or permanant wiring. June 9, 2008
Rated 5.0 out of 5.0 by Beyond gable, It works Great as a garage ceiling exhaust fan too! In the hottest part of our Texas summer, my interior garage temperature can get up to 95 degrees. Upon returning home and parking a car in the garage, the temperature can easily get to 105 degrees. So, I cut a 14 inch diameter hole in the garage ceiling, then mounted the 15 inch diameter solar gable fan horizontally, so that it sucks hot air out of the garage and empties into the attic space above the garage. Then, I mounted a solar-powered roof-mount exhaust-fan above the garage. Both solar fans work great, and so quiet! If the sun is shining, the fans are turning. The gable fan and solar panel are solid construction. I only wish the wire cable between the fan and solar panel was longer. The cable is only nine feet long. It really needs to be 15 feet long. I mounted the solar panel on my hip-angle roof with only three inches of cable to spare. April 26, 2013
Rated 5.0 out of 5.0 by easy to install very good features Love this solar-powered gable exhaust vent. Bought it initially to put into our shed but decided to install it in our lanai to circulate and get some heat out of there. It works great and keeps the lanai cooler. Will be buying another one to put into our shed in the near future. April 24, 2013
Rated 5.0 out of 5.0 by Good for small places Works great with my 2 story, 89 sq ft place! Added an extra solar panel system with the light and saved saved a lot of $$ on an electrical hook up! August 22, 2010
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