

Hero image 0 of GAF Master Flow Foundation Vent 16 in. x 8 in. in Black (10 Pack), 0 of 4
GAF Master Flow Foundation Vent 16 in. x 8 in. in Black (10 Pack)
Key item features
- Automatic open/close mechanism responds to outdoor temperature for optimized ventilation
- Factory set to fully open at 70°F and close at 40°F for enhanced crawl space protection
- Constructed from UV-resistant resin for long-lasting durability and performance
- Designed to help reduce moisture and prevent foundation decay in crawl spaces
- Provides a net free vent area of 57 sq. in. for effective air circulation
- Easy installation by simply slipping into place and securing with four included screws
- Built-in screen helps prevent debris and insects from entering the crawl space
- Standard size fits most foundation vent openings with common dimensions of 16 in. x 8 in.
- Actual vent dimensions: 17.5 in. x 9.25 in. to ensure a secure fit
- Black finish blends seamlessly with most exterior foundation designs
Specs
- Household vent & ventilation typeFoundation Vent
- MaterialHDPE
- Size20" W x 19" H x 24" L
- FeaturesAutomatic Shutoff
- ColorBlack
- FinishBlack
Current price is USD$19.99
Price when purchased online
Out of stock
How do you want your item?
Out of stock
Similar items you might like
Based on what customers bought
Air Vent 9.5 in. H X 17.1 in. W Black Plastic Automatic Foundation Vent $32.02
$3202current price $32.02Air Vent 9.5 in. H X 17.1 in. W Black Plastic Automatic Foundation Vent
84.8 out of 5 Stars. 8 reviewsMaster Flow 7.4 in. H X 15.4 in. W Mill Aluminum Foundation Vent Cover $26.49
$2649current price $26.49Master Flow 7.4 in. H X 15.4 in. W Mill Aluminum Foundation Vent Cover
114.6 out of 5 Stars. 11 reviewsAirVent 8 In. x 16 In. Brown Automatic Foundation Ventilator RABR $34.26
$3426current price $34.26AirVent 8 In. x 16 In. Brown Automatic Foundation Ventilator RABR
15 out of 5 Stars. 1 reviewsDeflecto MVCX815 Magnetic Vent Covers, 3 Pk (8" X 15") $13.98
$1398current price $13.98Deflecto MVCX815 Magnetic Vent Covers, 3 Pk (8" X 15")
503.6 out of 5 Stars. 50 reviewsPrimesource RAGR Foundation Vent Auto Gray $30.59
$3059current price $30.59Primesource RAGR Foundation Vent Auto Gray
52.4 out of 5 Stars. 5 reviewsWitten Manual Foundation Vent 500BL Retro - With Damper, Easy to Clean - 8" x 16", Bronze $14.41 Was $19.46
$1441current price $14.41, Was $19.46$19.46Witten Manual Foundation Vent 500BL Retro - With Damper, Easy to Clean - 8" x 16", Bronze
Witten Automatic Foundation Vent 500BR - Gable Vent, Plastic - 8" x 16", Brown $18.20 Was $23.49
$1820current price $18.20, Was $23.49$23.49Witten Automatic Foundation Vent 500BR - Gable Vent, Plastic - 8" x 16", Brown
13 out of 5 Stars. 1 reviewsWitten Automatic Foundation Vent With Damper - Gable Vent, ABS Plastic - 8" x 16", White $15.97
$1597current price $15.97Witten Automatic Foundation Vent With Damper - Gable Vent, ABS Plastic - 8" x 16", White
11 out of 5 Stars. 1 reviewsAir Vent 9.5 in. H X 17.5 in. W Black Plastic Manual Foundation Vent $33.70
$3370current price $33.70Air Vent 9.5 in. H X 17.5 in. W Black Plastic Manual Foundation Vent
21 out of 5 Stars. 2 reviewsWitten Automatic Vent Foundation Vent Classic - Adjustable, Gray, 8" x 16" $18.20
$1820current price $18.20Witten Automatic Vent Foundation Vent Classic - Adjustable, Gray, 8" x 16"
23 out of 5 Stars. 2 reviewsAir Vent Automatic Foundation Ventilator - Adjustable Plastic - 8 In x 16 In, Black $32.16
$3216current price $32.16Air Vent Automatic Foundation Ventilator - Adjustable Plastic - 8 In x 16 In, Black
11 out of 5 Stars. 1 reviewsBestvents 510BL Foundation Vent, 15-1/4 in W, Polypropylene, Black Oxide $21.36
$2136current price $21.36Bestvents 510BL Foundation Vent, 15-1/4 in W, Polypropylene, Black Oxide
14 out of 5 Stars. 1 reviewsVEVOR Crawl Space Flood Vent 8" Height x 16" Width Foundation Flood Vent to Reduce Foundation Damage and Flood Risk, Black, Wall Mounted Flood Vent, for Crawl Spaces, Garages & Full Height Enclosures $37.99 Was $61.96 $37.99/ca
$3799current price $37.99, Was $61.96$61.96$37.99/caVEVOR Crawl Space Flood Vent 8" Height x 16" Width Foundation Flood Vent to Reduce Foundation Damage and Flood Risk, Black, Wall Mounted Flood Vent, for Crawl Spaces, Garages & Full Height Enclosures
Crawl Space Foundation Vent Cover - Outward Mounted (Black, 10" H x 18" W) $28.99
$2899current price $28.99Crawl Space Foundation Vent Cover - Outward Mounted (Black, 10" H x 18" W)
23.5 out of 5 Stars. 2 reviewsSEAL360 Strong Magnetic Vent Covers, Pocketed Design, 5.5" x 10" (Brown, 3-Pack) for Floor, Wall, or Ceiling Vents and Air Registers, RV, Home HVAC and AC Vents, Vent Not Included $24.97
$2497current price $24.97SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 5.5" x 10" (Brown, 3-Pack) for Floor, Wall, or Ceiling Vents and Air Registers, RV, Home HVAC and AC Vents, Vent Not Included
4104.9 out of 5 Stars. 410 reviewsAirVent 16 In. x 8 In. White Aluminum Under Eave Vent 84211 Pack of 24 $85.02
$8502current price $85.02AirVent 16 In. x 8 In. White Aluminum Under Eave Vent 84211 Pack of 24
32.7 out of 5 Stars. 3 reviewsAir Vent 93805 16 x 8 in. Plastic Foundation Vent With Slider- Black $18.33
$1833current price $18.33Air Vent 93805 16 x 8 in. Plastic Foundation Vent With Slider- Black
15 out of 5 Stars. 1 reviewsNorwesco 596137 7.25" x 18.5" ABS Foundation Vent $43.53
$4353current price $43.53Norwesco 596137 7.25" x 18.5" ABS Foundation Vent
Air Vent Energy Saver Foundation Vent 306MGR Standard - Automatic Shutoff - 8" x 16", Gray $32.57
$3257current price $32.57Air Vent Energy Saver Foundation Vent 306MGR Standard - Automatic Shutoff - 8" x 16", Gray
Crawl Space Recessed Foundation Vent Cover - Fits 8" H x 16" W Openings - Durable and Efficient Sealing Solution (White) $28.99
$2899current price $28.99Crawl Space Recessed Foundation Vent Cover - Fits 8" H x 16" W Openings - Durable and Efficient Sealing Solution (White)
About this item
Product details
The GAF Master Flow 16 in. x 8 in. Automatic Foundation Vent helps reduce moisture and prevent decay in crawl spaces by allowing fresh air to circulate. With a net free vent area of 57 sq. in., it is factory set to open fully at 70°F and close fully at 40°F, ensuring optimal ventilation based on temperature. Constructed from UV-resistant resin for durability, this vent is easy to install and comes with a built-in screen to help keep insects and debris out. The sleek black finish adds a modern touch to foundation ventilation.
- Automatic open/close mechanism responds to outdoor temperature for optimized ventilation
- Factory set to fully open at 70°F and close at 40°F for enhanced crawl space protection
- Constructed from UV-resistant resin for long-lasting durability and performance
- Designed to help reduce moisture and prevent foundation decay in crawl spaces
- Provides a net free vent area of 57 sq. in. for effective air circulation
- Easy installation by simply slipping into place and securing with four included screws
- Built-in screen helps prevent debris and insects from entering the crawl space
- Standard size fits most foundation vent openings with common dimensions of 16 in. x 8 in.
- Actual vent dimensions: 17.5 in. x 9.25 in. to ensure a secure fit
- Black finish blends seamlessly with most exterior foundation designs
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Household vent & ventilation type
Foundation Vent
Material
HDPE
Size
20" W x 19" H x 24" L
Features
Automatic Shutoff
Warranty
Warranty information
N
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Warning Text
proposition 65 reasons:titanium dioxide, other chemicals
Customer ratings & reviews
How item rating is calculated
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |
Showing 1-2 of 2 reviews
Dec 7, 2017
MyLadyEz
5 out of 5 stars review
Walmart Automatic Vent saved the DAY!
Vandalism caused me to buy a new vent. I searched high and low and ended up with my favorite place to shop Walmart. NOONE had one but Walmart. I was pleased. It fit fine and is working as it should to my knowledge, opening and closing as it is meant to happen.
Helpful?2M1OOQWS3UEO40960273
Nov 16, 2021
april
3 out of 5 stars review
Verified Purchase
Good but could be much better
I recently installed these on my home. I like the concept but quality could be better. The screws are of very poor quality and the mesh is also. I do hope the concept delivers but I would seek alternative means knowing what I know now. I might still purchase these but would exhaust other options first.
Helpful?2M1OOQWS3UEO40960273



