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1 Exam Prep Ductulator (Duct Calculator)

1 Exam Prep Ductulator (Duct Calculator)

$15.99
Save $1.80

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The Ductulator - Duct Sizing Calculator is a hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. Includes scales for friction loss per unit length, air volume, air velocity, round duct diameter, and rectangular duct diameters

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