Multi-Color red, green, and blue
Includes a protective sleeve with ASHRAE recommended design air velocities
Classic Ductulator Style
One side English, one side metric
Size ducts using the equal friction method

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 6 inch
Height : 0.3 inch
Length : 10.2 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B01BUGXB7G

Product Description

The Ductulator - Duct Sizing Calculator is a hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. Includes scales for friction loss per unit length, air volume, air velocity, round duct diameter, and rectangular duct diameters. One side uses English units, the other side uses Metric units. Includes a protective sleeve with ASHRAE recommended design air velocities for system components/applications.