Lambro 219L Vent Hose, 4 in ID, 50 ft L, Vinyl, White

The Lambro 4 x 50 ft flexible white vinyl duct ideally serves bath fan exhaust and any other general venting applications that require the expulsion of moist air and humidity from the home. The marine bilge blower hose manages airflow in a boat's confined spaces, such as the engine room or cabin. It removes fumes, excess heat and moisture, helping to ensure safety and comfort for those on board. The manufacturer process constructs this duct from a single layer of 3 mil vinyl (PVC) material bound together with an adhesive that can withstand a maximum operating temperature of 158 degF. A steel wire helix spiral frame supports the duct, preventing it from collapsing.