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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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Description
12 in. Galvanized Externally Braced Replacement Turbine HeadThe GAF 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
The GAF 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
Features
| Item Weight | 7 |
| Material | Galvanized Steel |
| Bracing | Externally Braced |
| Color/Finish Family | Silver |
| Intake/Exhaust | Exhaust |
| Screen Included | No |
| Power Type | Wind Powered |
| Returnable | 180-Day |
| UV Resistant | No |
| Features | Dual Bearing |
| Color/Finish | Silver |
| Product Weight (lb.) | 7.6 |
| Paintable/Stainable | Yes |
| Color Family | Silver |
| Mounting Position | Roof Mount |
| Shape | Round Top |
| Product Height (in.) | 11 |
| Product Depth (in.) | 18 |
| Rough Opening Height (In.) | 12 |
| Rough Opening Width (In.) | 12 |
| Product Width (in.) | 18 |
| Product Width x Depth | 18 in. x 18 in. |
| Net-Free Area (Sq. In.) | 120 |
| Cut-Out Width (in.) | 12 |
| Coverage Area (Sq.Ft) | 192 |
| Manufacturer Warranty | Limited Liftetime Warranty |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 1
Not for aggressive chewers!
Color: H) Infinity Ring, Color: H) Infinity Ring
Not for aggressive chewers! Done for in about two minutes. I unboxed this and tugged with my Mal for a but then let her have it. Within minutes she had chewed through it. Not worth the money.
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Dog ball
Color: A) Small 2.5" Ball
My dog enjoys but smaller than expected
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Great tough ball
Color: A) Small 2.5" Ball
Great ball for dogs who like to destroy most any ball. Our girl loves this. Yay!!!
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Reviewed in the United States on March 17, 2026
★★★★★ 3
Not Quite So Durable...
Color: B) Medium 3" Ball, Color: B) Medium 3" Ball
Maybe I have a SUPER aggressive chewer...he went through this ball in under a week. I originally bought the ball because of a review that stated the owner's Pitbull had the same ball for two years; not so much for my Rottweiler. He started chewing off and swallowing small crumbs from the ball within a day or two. By the end of the week, it was chunks so I had to toss it in the trash to prevent an intestinal obstruction. On the up side, my Rottweiler LOVED the ball while it lasted. However, I can't, in good conscience, give this ball a rave review based on this experience. Please take this review with a grain of salt as I have yet to find ANY toy that my boy won't DESTROY in a week or two. I hope that someone finds this informative when searching for chew toys for SUPER aggressive chewers like mine.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
My dog LOVES this
Style: Goal Post Chew Toy, Color: Dallas Cowboys
I originally purchased 1 of these at Walmart. My dog did his thing with it and loved it so much that I had to repurchase another one through Amazon. My dog LOVES THIS TOY! It's his favorite!
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Reviewed in the United States on January 7, 2026