Everbilt 4 in. x 8 ft. Semi-Rigid Dryer Duct With Clamps 98251 - The Home Depot
VIVOHOME 4 Inch 25 Feet Aluminum Flexible Dryer Vent Hose Air Ducting Non-Insulated with 2 Stainless Steel Clamps for HVAC Ventilation and Exhaust Pack of 1 - - Amazon.com
Flexible Dryer Hose
Dundas Jafine Vinyl Duct Vent Pipe at Menards®
Foil Dryer Vent Hose Kit with Metal Clamps 4" x 5' - Walmart.com