Portable Air Conditioner Exhaust Hose Coupler Window Adapter A/C Connector, 5.9 inch A/C Coupler Connector, Suit for Air Conditioning Exhaust Port (Square) : Home & Kitchen

Portable Air Conditioner Window Vent Kit AC Exhaust Hose Universal Coupler Adjustable Window Seal Universal Duct Extension Pipe - AliExpress

Kxuhivc Portable Air Conditioner Exhaust Hose Connector 5.9 Inch Round Tube Adapter Exhaust Hose Coupler for Air Conditioning Exhaust Port : Home & Kitchen

Portable Air Conditioner Window Vent Kit APACK5 - The Home Depot

5.9 inch/6 inch Portable Air Conditioner Exhaust Hose Coupler Window Adapter A/C Unit Connector Mobile Air Conditioning Accessories (Square to Round)

Whynter ARC-14S: Powerful, Good Housekeeping's Top Pick

Sean's Choice 5.9 inch/6 inch Portable Air Conditioner Exhaust Hose Coupler Window Adapter A/C Unit Tube Connector Mobile air Conditioning Accessories Round : Home & Kitchen

Portable Air Conditioner Window Vent Kit With 5.9In Exhaust Hose Seamless Adjustable Sliding Door AC Kit Window Seal Kit - AliExpress

Jiecikou 5.9 inch Tube Portable A/C AC Air Conditioner Exhaust Hose Coupler/Coupling - Works with Every Mobile Air-Conditioning Unit Square (C/H Series) : Home & Kitchen

Portable Air Conditioner Exhaust Adapter

Portable Air Conditioner Window Vent Kit APACK5 - The Home Depot