Air Duct Calculator - Slide Rule Style

Air Duct Calculator - Slide Rule Style

Used by trainers, educators and technicians alike.
Provides the following information:
- Friction
- Velocity
- Round Duct Size
- Surface Area
...and more

Size: 4" x 9.25"
Materials: Heavyweight calculator board
Minimum Quantity with Imprint: 500
Minimum Quantity without Imprint: 50