Model EXD-437-CM extruded aluminum louver 4" deep • 37.5 ° combination blade


The EXD-437-CM combination louver features stationary drainable louver blades to protect against water penetration and an integral control damper to allow positive shutoff protection of air intake and exhaust openings. The EXD-437-CM closely reflects the available options and performance of the EXD-437, with the added benefit of a spring return actuator concealed within the louver sill. The EXD-437-CM is available in a wide array of anodized and painted finishes including custom color matching.


Product Sheets


Installation Instructions


Louver Options

Blank Off
Glazing Frame
Sill/Head Flashing
Louver Option CAD drawings