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Air duct sizing calculator with duct weight
For sale is a new Air Duct Sizing Calculator. This is a slide chart type tool used to size round or rectangular ductwork using the Velocity Reduction Method or the Equal Pressure Loss Method. This tool is easy to use with instruction printed on the front. The back is loaded with useful information such as recommended velocities, recommended metal guage sizes, and more. This item is made of thick durable cardboard stock with metal corner rivets and measures 9.25 inches long by 3.75 inches wide.
This slide also calculates duct weight in pounds per lineal foot.
I also have R-22 and R-410a superheat/subcooling charts. Check them out while supplies last!