4" Round No screen vent, brown
4" Brown No Screen Vent
These round vents are made of Aluminum.
They are easy to install. They fit into the hole made by a drill-type hole saw and are held in place by knobs on the side of the vent. No nails or screws are needed.
The louvers are closely spaced to prevent wasps or other insects from entering. They do not have screens.
3.682 si nfa (square inches of net free ventilation area).
Made in the USA.
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