Master Flow foundation vents help to remove damaging moisture, which can lead to mold growth and structural decay in the foundation area of the home. They can even help lower the risk of frozen pipes by providing ventilation in the crawl space area.

Manufacturer: Master Flow
Manufacturer part number: 500
$33.99
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LL BUILDING PRODUCTS 500 GAF Master Flow 8" x 16" Grate Style Foundation Vent with 28 sq. in. NFA – Prevents Moisture buildup & Foundation Decay with Optimal Airflow - Durable die-cast Aluminum Construction (EA)

$33.99