These high-strength fiber-reinforced PVC duct hoses resist moisture, UV rays, ozone, and oils. They are suitable for use in industrial and commercial vacuum cleaner, industrial machinery ventilation and cooling, bilge pumps and bilge ventilation, driver ventilation, PAPR, and pellet transfer applications. They can also be used as conduit to cover and protect cables. These hoses are used in the marine, municipal, plastics-processing, and transportation industries.