60 X 12 X 1 Cathedral Front Flange Custom Aluminum Vent

https://onyxxteriors.com/info/explore/60-X-12-X-1-Cathedral-Front-Flange-Custom-Aluminum-Vent.php

Frontal nail fins are very easy for almost any install.

That is why the front flange is refered to as universal.

Look for

Cathedral custom aluminum vents

This Cathedral Louver is 60 wide and 12 tall with a 6 inch leg.