Product details
$64
SKU: 1892765144
This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures.
Uses:
- Sizes metal ducts, lined metal ducts duct board airways, and wire helix flexible ducts.
- Converts round shapes to equivalent rectangles.
- Correlates available pressure with total effective length and friction rate (Manual D sizing calculations).
- Converts velocity into velocity pressure and vice versa.
- Corrects for altitude and temperature