https://www.mccoys.com/shop/p/6226997-052303-37/witten-vent-510bl-foundation-vent-15-14-in-w-polypropylene-black-oxide
510BL Foundation Vent, 15-1/4 in W, Polypropylene, Black Oxide
Sku: 6226997-052303-37
$10.56
7 Available at
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Estimated Arrival On: 04/01/2026
Grill with a flange and (4) screws to hold it in the foundation opening, has no flap or slide mechanism to open or close it, so the air can constantly move through. Size of 7-3/4 in x 15-1/4 in so it easily fits the standard 8 in x 16 in block foundation opening.
Rough Opening Size
8 in L x 16 in W
Material
Polypropylene
Finish
Black Oxide
Width
15-1/4
Depth
7-3/4
Suitable for
Standard Block Foundation Opening
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