Handheld Duct Sizing Calculator for HVAC Systems With Equal Friction Method and Velocity Reduction, Easy Sliding Tool for Precise Supply and Return Duct Design, Quick, Pro Grade, User Friendly, A Must For Pros

Single handheld HVAC Duct Sizer with Equal Friction Method
✔️ Pro-grade sliding duct sizing tool with velocity reduction method

This handheld duct sizing calculator is designed for HVAC pros to size supply and return ducts in the field using the equal friction method. It's a compact, durable tool that fits on a workbench or in a bag, ideal for on-site design work.

✅ Front scales include friction, velocity, round duct size, weight per foot, surface area per foot, rectangular equivalents, and more
✅ Back side shows equivalent feet of straight duct for common fittings, corrected pressure drop charts, and HVAC formulas
✅ Pull-out slide provides recommended duct velocities and sheet metal gauges
✅ Tool measures 4 inches high and 8.5 inches wide, built on thick water-resistant paper stock with glued edges and corner rivets

Dimension	Value
Height	4 in (102 mm)
Width	8.5 in (216 mm)

✅ Pack size: single unit

💡 What is a duct sizing calculator used for in HVAC design and field work? Handy on-site tool helps users quickly estimate duct sizes and losses on real jobs. - duct sizing for supply and return lines using equal friction method - on-site velocity and pressure drop references - round and rectangular duct equivalents for quick comparisons - portable handheld device for field use