The Air Ventilator Heavy-Duty ventilation flex hose is a highly durable air ventilation duct that is well suited to industrial air movement applications. This flexible ventilation duct is made with a thick PVC vinyl coated polyester fabric that is reinforced with a spring steel wire helix and external wear-strip. The spring steel wire helix in each of these heavy-duty ventilation ducts gives them a stronger form and a degree of flexibility. It can help prevent the air hose from being crushed or deformed. The external wear-strip on the outside of this durable air ventilation hose is meant to provide an added layer of protection against physical abrasion. The biggest differentiator that separates these air ventilation ducts from others is its heavier PVC fabric material. Although the spring wire helix allows for easier compressibility and transport， this ventilation ducting is heavier than its standard counterparts. It can also handle high and low temperature situations， with a working range between minus 20°F and 180°F. It is a very easy flex hose to install. Each of these flexible ducts comes with ends that have belted cuffs that allow for efficient easy installation， eliminating the need for cumbersome clamps. This ventilation hose is distinguishable by its yellow body fabric and black external wear-strips. This flexible ventilation duct is suitable for use in applications such as air duct cleaning， AC ventilation， cold air supply， dehumidification and humidity control.

Ultra-durable， heavy-weight flexible air duct

Highly compressible flexible air duct that is easy to transport

Built-in wear strip offers flex duct external abrasion resistance for heavy-duty applications

Retract ability allows for convenient storage and easy transport in a fraction of its fully extended length

Thick PVC vinyl-coated polyester flexible hose reinforced with a spring steel wire helix and external wear strip