Amazon.com: 4Inch 10FT Long Flexible Aluminum Air Ducting, Heavy-Duty Black 4 Layer Dryer Vent Hose, Dryer Duct for HVAC Ventilation,duct fan systems, 2 Stainless Steel Clamps Include : Appliances
Tite Fit Dryer Venting Duct With Transition Fitting, Straight, Aluminum, 2 x 6-In. | True Value
Lambro TiteFit 90-Degree Rectangular Aluminum Dryer Duct 3006 - The Home Depot