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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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Description
18 in. x 9 in. Silver Galvanized Steel Crawl Space Fan VentThe Tjernlund UnderAire Series V2D Crawl Space Ventilator fan is designed to circulate fresh outdoor air underneath homesand porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns,joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may alsocause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases,
The Tjernlund UnderAire Series V2D Crawl Space Ventilator fan is designed to circulate fresh outdoor air underneath homesand porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns,joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may alsocause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated wood off-gassingand other odors that might migrate into living areas. The V2D is controlled by a dehumidistat whichactuates the fan if the relative humidity rises above the selected set-point.- Fan powered crawl space ventilation quickly reduces moisture helping to protect both home and occupants
- Ventilates excess moisture, the cause of mold, mildew and wood rot. Increases air circulation to fight condensation
- Constant operation helps vent radon, treated wood off-gassing and odors that might otherwise migrate into living areas
- Increases air circulation to fight condensation. 220 CFM
- V2D is equipped with a factory installed and pre-wired thermostat which will prevent operationof the fan below 35°F outdoor temperature; normal operation of the fan will resume once the temperature outside risesnear 50°F
- Each fan is 25-Watts, inexpensive to operate
- 2-fans to maximize airflow
- 2-fans and large face plate sized forventilation openings through block foundations
- Includes thermostat, dehumidistat,pre-wired 6 power cord and hardware packet
- Turns on and off automatically to minimize power usage
Features
| Item Weight | 7 |
| Shape | Rectangular |
| Color Family | Silver |
| Product Weight (lb.) | 6 |
| Intake/Exhaust | Exhaust |
| Automatic/Manual | Manual |
| Color/Finish | Metal |
| Power Type | Electric Powered |
| Returnable | 180-Day |
| Features | Built-in Screen,Built-in Thermostat,Thermostat Controlled,Wildlife Guard |
| Material | Galvanized Steel |
| Mounting Position | Wall Mount |
| Rough Opening Height (In.) | 6 in |
| Product Height (in.) | 18 |
| Net-Free Area (Sq. In.) | 1 |
| Rough Opening Width (In.) | 10 in |
| Product Depth (in.) | 14 |
| Product Width (in.) | 8 in |
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
4.8 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 4
Nice, but a little snug
Size: Large, Color: Navy 177
I like the material, it does a better job than most shirts of being wrinkle free. The sizing is a bit small, I have a gut and if feels snug, whereas my other shirts (mostly LL Bean) do not.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Shirt
Size: Large, Color: Blue Red White 161
Wonderful shirt. Great fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Will by again
Size: Large, Color: Black 176
Perfect fit and looks great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 3
Nice shirt!
Size: X-Large, Color: Blue Red White 161
A very nice checked shirt. It is mostly iron free. The material, although cotton has a stiff feeling. If you forget that drawback, it's a nice shirt. So reasonably priced.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Run small.order a size larger
Size: X-Large, Color: Blue White 168
Nice quality shirt. Had to return fo that sizing chart was little off. They ran a little small in length and in the chest.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
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