4" Inch Metal Vent Duct Connector - Vent Extension - Galvanized Metal Pipe Connection - 4 Inch Dryer Vent Coupler - Metal Dryer Pipe Coupling - Rigid 4" Inch Metal Hose Extension - - Amazon.com
Flexible Dryer Duct Air Aluminum Vent Pipe 8 Feet x 4 Inch Includes 2 Metal Ring - Walmart.com
iPower Flexible 3/4/6/8 inch Aluminum Ducting Dryer Vent Hose for HVAC Exhaust | eBay
Lambro 4-in x 24-in Aluminum Round Duct Pipe in the Duct Pipe department at Lowes.com
Amazon.com: Dryer Vent - Galvanized Steel - Heavy Duty Hooded Metal Caps for Exterior Side Wall Exhaust - Spring Loaded Backdraft Damper - Standard 4 Inch Diameter Duct by Vent Works : Appliances
4 Inch Wall Vent | Heavy Duty Metal Wall Vents by Vent Works
Amazon.com: Dryer Vent - 4 Inch Metal Dryer Vent Hood : Appliances
Everbilt 4 in. x 8 ft. Flexible Aluminum Dryer Vent Duct BTD48HD - The Home Depot
Builder'S Best Inc. 110638 4 Inch x 24 Inch Rigid Dryer Vent Pipe Case O... | eBay
2 Pack 4" Round x 24" Long - Total 4 Feet of pipe - Duct Pipe - 4' Lon - HVAC Premium
SAF-T-DUCT® All Metal Dryer Vent Kits - UL® - Builder's Best