Rectangular vs circular: Circular uses less overall material for the same volume
Steel vs fiberglass and other material: Material affects the pressure drop / friction. Galvanized steel has less pressure drop than fiberglass
Meme insight you can trust ™️
Rectangular vs circular: Circular uses less overall material for the same volume
Steel vs fiberglass and other material: Material affects the pressure drop / friction. Galvanized steel has less pressure drop than fiberglass