For low to medium pressure applications, tube axial fans include both direct and belt driven fans with cast aluminum or fabricated steel blades. Propeller tube axial inline fans have a straight through airflow, compact size and the flexibility to be mounted in any configuration - horizontal, vertical, or any angle. These fans are designed for reliable air movement in ducted commercial and industrial applications. The roof upblast configuration is designed to discharge contaminants up and away from the building in most applications. Where indicated below, models are available in both configurations.