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Rapid City, SD | Sioux Falls, SD | Bismarck, ND

CALL TODAY

Rapid City, SD | Sioux Falls, SD | Bismarck, ND

Outside Air Louvers

Combination Stationary 4″ Outside Air Louver with Opposed Blade Air Control Damper

4500-3000OBD

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Outside Air Louver with Parallel Blade Air Control Damper

4500-3000P

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Outside Air Louver with Vertical Mount Pressure Relief Damper

4500-3510

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Outside Air Louver with Vertical Mount Backdraft Damper

4500-3550

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Drainable Outside Air Louver with Opposed Blade Air Control Damper

4525-3000OBD

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Drainable Outside Air Louver with Parallel Blade Air Control Damper

4525-3000P

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Drainable Outside Air Louver with Pressure Relief Damper

4525-3510

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 4″ Drainable Outside Air Louver with Vertical Mount Backdraft Damper

4525-3550

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 2″ Outside Air Louver with Opposed Blade Air Control Damper

4550-3000OBD

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Combination Stationary 2″ Outside Air Louver with Parallel Blade Air Control Damper

4550-3000P

  • Dampers and louvers can be combined with a 20 gauge steel sleeve to create an environment to regulate airflow in or out of a louver with an operable blade damper.

Stationary 4″ Outside Air Louver

4500

  • Extruded aluminum construction
  • Standard flange frame
  • 4″ depth

Storm Resistant Stationary 4″ Drainable Outside Air Louver

4525

  • Extruded aluminum construction
  • Standard flange frame
  • 4″ depth