Type-5 H-rail suspension is a method of suspending FabricAir ducts. The H-rail, so named because it looks like a H in the cross section, is made out of anodized aluminum, making it an excellent choice for corrosive environments.

One or two rows of field adjustable, anodized aluminum rods are hung from the building structure and lock into the top channel of an H-rail type suspension system.
This creates a clean aesthetical design, which is highly popular in office applications. The drop spacing can be determined from the installation instructions that are provided with each order.