18 in. Sidedraft Evaporative Cooler Barometric Damper - 17.75 x 17.75 in.

Automatic barometric damper for compatible sidedraft evaporative cooler duct installations.

Specifications & Compatibility

• Nominal cooler duct size: 18 x 18 inches
• Actual listed damper size: 17.75 x 17.75 inches
• Airflow configuration: sidedraft
• 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 18-inch sidedraft evaporative cooler ducts. Measure the available opening and confirm the required airflow direction and mounting orientation before ordering. Use the sidedraft version for the matching installation.