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.

Orders for in stock items received by 3 pm will ship the next business day.

Quantiites are limited. Please contact us in advance for extremely large orders.