Air Duct Calculator - Slide Rule

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Price $9.95 $8.95


Air 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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