TerraBloom Flexible 8 Ducting Black Duct with 2 Clamps 4 Layer HVAC Ventilation Air Hose

Size:4′ X 25 FT W/2 CLAMPS (WHITE) TerraBloom 4′ by 25′ Flexible White Ducting will help to get your ventilation job done quickly and easily. Comes with a pair of clamps for easy installation. Lightproof and Length Adjustable. Fits Fan, Filters and Pipes 4 Inches in Diameter.