Air Duct Calculator - Slide Rule
: Brown Technical Book Store
: Single Detail Page Misc
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 9.5"/ ISBN No. 9781622709823Sturdy construction of heavyweight calculator board with 6 metal eyelets.