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Pottorff Announces NEW Louver Insect Screen

Our improved louver insect screen features a top-quality product and a clean appearance. Additionally, we are offering a fully removable and replaceable bird screen option when regular maintenance and cleaning is required. Default insect screen is now fiberglass but we still offer an option for aluminum if required.

NEW Duct Connection Options for our Wood Truss System Dampers

When the CFD-521-IP and CFD-521-NP dampers are configured to close within 1/8” of the top of the gypsum board used in wood truss floor/ceiling and roof/ceiling assemblies, duct connections can now be made on the top of the damper, or any combination of sides of any size. This applies for all standard installations. Additionally, the plenum height can now be extended to allow duct connections in roof/ceiling assemblies with increased insulation to adhere to new, more stringent guidelines.

NEW EFD-635 Drainable Blade Louver Outperforms the Competition!

The EFD-635 drainable blade louver is designed to prevent.water penetration in non-wind-driven rain applications by collecting water in frame and blade gutters and channeling it into downspouts and away from airflow paths. The EFD-635 is available in a wide array of anodized and painted finishes including custom color matching.


High Free Area of 60.7%

1250 FPM @ Beginning Point of Water Penetration

AMCA Certified for Water Penetration and Air Performance

View EFD-635 Catalog Sheet
Pottorff's Recent Case Study

The 1.5 billion dollar Seminole Hard Rock Hotel and Casino resembles an authentic guitar and features 600 suites as well as a 41,000 sq. ft. spa, lagoon pool, lake, shops and restaurants. Pottorff supplied our ECD-545-WD and ECV-645-MD severe duty louvers for this project.


See the Super Bowl Sunday video featuring this project.
Pottorff's LIST Tool Redesign Showcased in the January ASHRAE Journal

Our popular LIST Louver Information and Selection Tool was recently redesigned with more search parameters and a fully responsive design. There is no need to register to use this valuable online program and you can export your schedule directly into our SPECs pricing program.