RED Calc Free

v1.0, Legacy Tool

Summary: This tool, along with a pitot tube and a digital manometer, allows you to accurately measure the airflow within a duct of 4 inches (10.2 cm) or greater, such as that of a kitchen range hood or dryer vent. See Tool GuideClick on any input or result label for help. By using this tool (application) you agree to the Terms of Use.

This legacy tool is NOT optimized for mobile devices. Stay tuned for the mobile-optimized version 2.0.

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