EXTRUDED ALUMINUM BRICK VENT
With OPPOSED BLADE DAMPER


Model "ex" ventilator
(4" deep)


Extruded alumnium to be 6063-T5 Alloy. Minimum .125" Thick.
Blades are 1" deep, set at 45° angles, 1" on center.
For any unit over 30" wide- do not mortar jamb sections.