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Master Flow

Model # GT12E

Internet # 100019017

Store SKU # 691710

12 in. Galvanized Externally Braced Replacement Turbine Head

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

$29.00 /each
  • External bracing
  • Galvanized construction
  • Fits most 12 in. turbine bases.




Model # GT12E

Internet # 100019017

Store SKU # 691710

The Master Flow externally braced turbines are efficient, easy-to-install venting options for your roof. They allow heat and moisture-laden air to escape your attic, helping to extend the life of your roof. They are designed with upper and lower steel ball bearing systems for years of trouble-free operation.

  • Galvanized construction
  • Mill finish
  • Head has heavy-duty steel spider braces for strength and durability
  • Dual-bearing system with encased design helps to prevent dirt, dust, sand, and other foreign materials from damaging the bearing, resulting in a smother spin
  • Permanently lubricated track system of dual bearing system ensures years of trouble-free spinning
  • Fits most other 12 in. turbine brands

Info & Guides

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Cut-Out Left to Right Length (in.) 
12 in 
Net-Free Area (Sq. In.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Color Family 
Galvanized Steel 
Product Weight (lb.) 
7.6 lb 
Screen Included 
Round Top 
UV Resistant 
Vent Type 
Wind Turbine 
Warranty / Certifications
Manufacturer Warranty 
Limited Liftetime Warranty 


Rated 3.8 out of 5 by 42 reviewers.
Rated 4.0 out of 5.0 by Product ok but not complete I ordered the turbine, thinking the base flashing would be included. It wasn't so I had to order it in addition. Not a big deal but thought it would have been included. The turbine not much good without the base. November 3, 2015
Rated 4.0 out of 5.0 by Good quality at a fair price It installed quite easily, however, the bearings seem a little tight as it doesn't spin real easy. This may correct itself in time and a little wear. November 3, 2015
Rated 4.0 out of 5.0 by Check before you buy! After reading other reviews here I decided the best thing would be to check the item in the store before purchase. I opened a box, took out the turbine and gave it a spin. Sure enough, it made a clicking sound. I looked for interference between turbine and support and there was plenty of clearance, so it must have been in the bearings. The second one I opened spun silently. My advice, check it out before you purchase, save yourself a trip back to exchange. December 8, 2011
Rated 4.0 out of 5.0 by Good quality replacement part No need to remove the base, just replace the turbine head in a few easy minutes. May 12, 2015
Rated 5.0 out of 5.0 by Wind Turbine Twirls Excellent quality, easy to install, you will need small drill bit to start sheet metal screws and setting drill at minimal torque to avoid stripping, but you will have a great working product. It does take a little more wind speed than normal, but I have noticed they all are working find. October 20, 2015
Rated 1.0 out of 5.0 by they do not turn easily It takes a wind of at least 10 mph to get these turbines to turn. I have oiled them and they start to turn but it still takes a good strong wind to make them work. One that I bought about 2 years ago is not starting to work better but I have also had to oil and graphite it. September 29, 2015
Rated 3.0 out of 5.0 by Not Good It was bent and did not turn properly had to mess with it and the guy at the store tried to send me home with wrong box so I opened it in the store and told him that was not it he later found correct box so you ask if I am happy ? I ask you would you be happy ? June 16, 2015
Rated 5.0 out of 5.0 by Has real sealed ball bearings. This product is well made and fit on a different manufactured unit and works well. June 9, 2015
  • 2015-11-29 T10:02:29.176-06:00
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