Description
is an air chanel a square or circle,In other words, a square tube has the same hydraulic diameter as the same sized round pipe so the flow restriction between the two will be the same. Make it out of either .
Beige and white GG Supreme canvas
Air flow differance.Square versus round tubing
Gold-toned hardware
Hydraulic diameter
Double G
Inside: 5 open pocket
Equivalent Diameter
Chain top handle with 7″ drop
Top zip closure
Air channels
6.5″W x 5.7″H x 2.4″D
Weight: 0.8lbs approximately
Why is it that pipes are round but ducts