22 in. Downdraft Evaporative Cooler Barometric Damper - 21.5 x 21.5 in.

Automatic barometric damper for compatible downdraft evaporative cooler duct installations.

Specifications & Compatibility

• Nominal cooler duct size: 22 x 22 inches
• Actual listed damper size: 21.5 x 21.5 inches
• Airflow configuration: downdraft
• Frame and vanes: high-grade aluminum
• Hinges: nylon
• Weatherstripping insulation helps form a thermal seal
• Operation: opens automatically during cooler airflow and closes when the cooler is off

Installation & Use

For compatible 22-inch evaporative cooler roof jacks. Measure the available opening and confirm the required airflow direction and mounting orientation before ordering. Use the downdraft version for the matching installation.