The square galvanized mill finish vent and has 50 sq. in. nfa per piece. it has a 8" round opening and is unfiltered._x000d_ _x000d_ Aluminum or galvanized _x000d_ Heavy rust free integral screen _x000d_ 50 square inches of net free area per piece _x000d_ .
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SLP61GR gray plastic slant back roof vent. It has 61 sq. in. of net free area and has a 9 in. diameter opening. Fully screened with rain diverter High impact plastic construction Flashing dimension 17"x18" .
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SLAWH white slant aluminum roof vent. It has 50 sq. in. of net free area and has a 9 in. diameter opening. One-piece design is weather tight and adds strength Large flange for easy installation 3/12 to 12/12 roof pitch .
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110mm Flat roof vent suitable for most flat roofing materials unused but has some minor marks2 Available, message me if interested in both and we can negotiate a price If you require and further information do not hesitate to drop me a message
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