This didactic tool includes information on friction loss, velocity, volumes, and efficiency,as well as an easy way to size round and rectangular duct systems.
I was able to pass my test with the help of the ACCA Duct Slide Rule. Its full of lots of useful information. I am extremely happy with my purchase!Zack Michaels
I purchased this tool from somewhere else, it was in horrible condition. When i received this item within my package from Contractor Campus it was in perfect condition !
Jess Marie