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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Automatic Damper for Turbine VentilatorSlash home heating cost today. It's so easy. Cuts turbine winter heat loss by 80%. Roof turbines are great in summer. But, suck warmth from your rooms in winter. Never cover turbine with a bag. A roof fall is very dangerous. See 1 Min. Video. Louvers: OPEN in summer (70F) CLOSE in winter(40F) Powered by temperature (needs no batteries) U. S. Patent; new energy saver Winterize your home quick, install: 1 unit 30 min. 3 units 60 min Fits into new or old
Slash home heating cost today. It's so easy. Cuts turbine winter heat loss by 80%. Roof turbines are great in summer. But, suck warmth from your rooms in winter. Never cover turbine with a bag. A roof fall is very dangerous. See 1-Min. Video.- Louvers: OPEN in summer (70°F) CLOSE in winter(40°F)
- Powered by temperature (needs no batteries)
- U.S. Patent; new energy saver
- Winterize your home quick, install: 1-unit 30-min. 3-units 60-min
- Fits into new or old turbine ventilator: 12" or 14" Diatmeter
- Restricts turbine's suction and exhausts attic moisture in winter
- Get on the roof once to install it and never go there again
- 100% maintenance free
- 25-year guarantee: free replacement of thermostatic controller
- Molded of durable impact polystyrene
- Innovate today; watch 1-min. video
- Click here to learn more about
- Features:
Features
| Item Weight | .7 |
| Product Weight (lb.) | 1 |
| Bracing | Internally Braced |
| Color Family | Gray |
| Intake/Exhaust | Exhaust |
| Screen Included | No |
| Power Type | Wind Powered |
| Returnable | 180-Day |
| Material | Plastic |
| Color/Finish | Gray |
| Paintable/Stainable | No |
| Shape | Round |
| Features | Automatic Shutter,Built-in Thermostat,Corrosion Resistant,Thermostat Controlled,UV Resistant |
| Mounting Position | Roof Mount |
| UV Resistant | Yes |
| Product Width x Depth | 11.7 in. x 2.2 in. |
| Rough Opening Width (In.) | 11.7 |
| Net-Free Area (Sq. In.) | 78 |
| Product Width (in.) | 11.7 |
| Product Height (in.) | 11.7 |
| Rough Opening Height (In.) | 2 |
| Cut-Out Width (in.) | 2.2 in |
| Product Depth (in.) | 2.2 |
| Coverage Area (Sq.Ft) | 2000 |
| Manufacturer Warranty | 25-year factory replacement of thermostatic controller as needed. This is the drive mechanism. |
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
4.6 ★★★★★
Based on 1630 reviews
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Product Reviews
★★★★★ 5
Fresh
The condition was good durability was good. The value for it is really really good and easy to use it. Taste was so good. The texture was normal and would buy again and so fresh and great.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
A no-brainer
They taste good, arrived in great shape with no bruises, pricing can't be beat, and were just on the verge of being at peak condition which is just what you would hope for....not green anymore but good for several days. What's not to like? Prompt delivery. I don't know how they do it but they did. Five stars earned.
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Reviewed in the United States on April 19, 2026
★★★★★ 4
Just right bananas
Buying more groceries on Amazon lately. So, want to start sharing experience. The bananas were just right—not too ripe and not too green. Would buy them again thru Amazon
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Received a perfect bunch!
Some things are truly hit or miss with Amazon Fresh grocery deliveries!
I Some things are truly hit or miss with Amazon Fresh grocery deliveries!
I hadn’t ordered bananas for about a month due to what I’d received in the past.
Personal preference? I want those lovely pale green ends! Please!!! I don’t like the flavor or even the change in scent that happens when bananas turn darker yellow, freckle - or worse? Turn brown. Yuck.
Each previous delivery, I hadn’t been able to eat more than 3 out of each bunch because of the already yellowed fruit received. I even tried the currently trendy recommendation of wrapping the individual stem ends in plastic wrap to help slow the ripening process.
Was very pleased to receive a bunch of 6 small sized bananas, all delicately green and completely beautiful!
Beautiful job by the thoughtful delivery person as well, who didn’t just leave the bags in the rain on the (only 2!) steps, but made sure they were under the protection of the porch and not blocking my door.
Some items I never order anymore (beloved snap peas and garnet potatoes are two examples) after receiving spoiled items - more than once.
Apparently notifying Amazon of our understandable disappointment, not to mention the waste! can sometimes improve the quality of items delivered.
I do very much appreciate the Amazon Fresh delivery service in my (rapidly approaching) old age. As I rarely go out anymore, this has Some things are truly hit or miss with Amazon Fresh grocery deliveries!
I hadn’t ordered bananas for about a month due to what I’d received in the past.
Personal preference? I want those lovely pale green ends! Please!!! I don’t like the flavor or even the change in scent that happens when bananas turn darker yellow, freckle - or worse? Turn brown. Yuck.
Each previous delivery, I hadn’t been able to eat more than 3 out of each bunch because of the already yellowed fruit received. I even tried the currently trendy recommendation of wrapping the individual stem ends in plastic wrap to help slow the ripening process.
Was very pleased to receive a bunch of 6 small sized bananas, all delicately green and completely beautiful!
Beautiful job by the thoughtful delivery person as well, who didn’t just leave the bags in the rain on the (only 2!) steps, but made sure they were under the protection of the porch and not blocking my door.
Some items I never order anymore (beloved snap peas and garnet potatoes are two examples) after receiving spoiled items - more than once.
Apparently notifying Amazon of our understandable disappointment, not to mention the waste! can sometimes improve the quality of items delivered.
I do very much appreciate the Amazon Fresh delivery service in my (rapidly approaching) old age. As I rarely go out anymore, this has been invaluable for me.
Thank you so very much…
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Nice size bananas. Not bruised or spoiled. Good bananas!
Really beautifully picked for ripeness and last a few days once you get them home.
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Reviewed in the United States on May 27, 2026