Air Duct Calculator - Slide Rule
Price $9.95 $8.95
DescriptionAir Duct Calculator -Slide Rule Style
This rectangular air duct calculator is the technicians favorite.
Provides the following information with one setting:- Friction- Velocity- Round Duct Size- Surface Area...and more
Size: 4" x 8.5". ISBN No. 9781622709823Sturdy construction of heavyweight calculator board with 6 metal eyelets.
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