Rib spiral pipe
Round duct tape formed by steel seaming spiral-shaped, with two veins reinforcing the center, which gives greater rigidity to the duct.
*Galvanized steel finish.
*Nones diameters available.
*Available with internal insulation DuctLiner 1" thick and other.
* Union by couplings or flanges.
Advantages: allows to use thinner calibers than in straight spiral duct for the same diameter, this being a cheaper option in some cases.