Flat roof vent for foam roofs 18x18 inch id 30x30 base 7 in.
18 x18 flat roof vents.
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Flat roof vent 18x18 inch id 30x30 base 3 5 inch rise 8 inch overall height 26 gauge galvanized steel 247 sq in.
Made in the usa.
Lowest price guaranteed same day shipping thousands of 18x18 roof vents reviews.
Roof vent 18 x 18 inch flat top box vent 3 5 rise 26 gauge flat roof vent 18x18 inch id 30x30 base 3 5 inch rise 8 inch overall height 26 gauge galvanized steel 247 sq in.
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Overall height top not removeable.
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26 gauge galvanized steel.
Net free vent area.
26 gauge galvanized steel.
Free shipping and free returns on prime eligible items.
Net free area screened.
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Active ventilation products inc.