Model 435

Model 435 | 4 Inch Extruded Sightproof Louvers These fixed, non-drainable louvers provide excellent ventilation while sightproof blades block views for increased security or to hide unsightly equipment. Depth is 4″ (101.6mm).  As with all of our products, they are made in the USA.

Model 436 Extruded Sightproof

Model 436 Extruded Sightproof These fixed, non-drainable louvers provide excellent ventilation while sightproof blades block views for increased security or to hide unsightly equipment. Depth is 4″ (101.6mm). As with all of our products, they are made in the USA.

Model 537XP

Model 537XP | 5 Inch Extruded Sightproof Louvers These fixed, drainable louvers provide excellent ventilation while sightproof blades block views for increased security or to hide unsightly equipment. Depth is 5″ (127mm). As with all of our products, they are made in the U.S.A.

Model SP437V

Model SP437V | Storm Performance Louvers 4 Inches Storm Performance Louvers provide optimum performance against the elements. Vertically mounted blades are specifically designed and tested to prevent infiltration of wind driven rain while allowing maximum airflow through the unit. Depth is 4″ (101.6mm). Performance data is certified by AMCA. As with all of our products, they are Read more…

Model SP437

Model SP437 | 4 Inch Storm Performance Louvers Storm Performance Louvers provide optimum performance against the elements. They have been specifically designed and tested to prevent infiltration of wind driven rain while allowing maximum airflow through the unit. Depth is 4″ (101.6mm). Performance data is certified by AMCA. As with all of our products, they are made Read more…

Model SP537

Model SP537 | 5 Inch Storm Performance Louvers Storm Performance Louvers provide optimum performance against the elements. They have been specifically designed and tested to prevent infiltration of wind driven rain while allowing maximum airflow through the unit. Depth is 5″ (127mm). Performance data is certified by AMCA. As with all of our products, they Read more…

Model 667-71

Model 667-71 | Combination Louvers A combination of adjustable and fixed blades provide maximum performance and have test data certified by AMCA. Operating mechanisms in each jamb are linked with an aluminum flat bar. Depth is 6″ (152.4mm). As with all of our products, they are made in the USA.

Model 671

Model 671 | 6 Inch Linked Jamb Adjustable Louvers Adjustable blades allow louvers to open and close providing maximum flexibility for ventilation and protection. Operating mechanisms in each jamb are linked with an aluminum flat bar. Depth is 6″ (152.4mm). As with all of our products, they are made in the USA.

Model 670

Model 670 |  Exposed Link Adjustable Louvers Adjustable blades allow louvers to open and close providing maximum flexibility for ventilation and protection. An exposed linkage is operated by an aluminum flat bar. Depth is 6″ (152.4mm). As with all of our products, they are made in the USA.

Model 471

Model 471 | 4 Inch Linked Jamb Adjustable Louvers Adjustable blades allow louvers to open and close providing maximum flexibility for ventilation and protection. Operating mechanisms in each jamb are linked with an aluminum flat bar. Depth is 4″ (101.6mm). As with all of our products, they are made in the USA.

© 2025 Industrial Louvers Inc. All rights reserved. | +1 763.972.2981 | 1.800.328.3421 | ilinfo@IndustrialLouvers.com