Dryer Vent Hose Connector Heater Accessories Duct Connector 3 Way Hose Adapter With 2 Adjustable Valves Control Air Volume - Tire Repair Tools - AliExpress
Amazon.com: HG POWER 3 Inch Dryer Vent Hose, 16 Feet Long Flexible PVC Hose, Three Layer Noise Reducer Hose Aluminum Ducting for Heating Cooling Ventilation AC Exhaust Black : Appliances
IMPERIAL 26.5-in to 43-in Adjustable Periscope Dryer Vent in the Periscope Dryer Vents department at Lowes.com
Master Flow 4 in. to 3 in. Round Reducer R4X3 - The Home Depot