Photo 1 of Square to Round Coupler for Portable Air Conditioner with Square Air Outlet and 5.9"/6" Exhaust Hose, Mobile A/C and Exhaust Pipe Connector, AC Unit Tube Connector for Air Conditioning Exhaust Port

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Photo 1 of Square to Round Coupler for Portable Air Conditioner with Square Air Outlet and 5.9"/6" Exhaust Hose, Mobile A/C and Exhaust Pipe Connector, AC Unit Tube Connector for Air Conditioning Exhaust PortPhoto 2 of Square to Round Coupler for Portable Air Conditioner with Square Air Outlet and 5.9"/6" Exhaust Hose, Mobile A/C and Exhaust Pipe Connector, AC Unit Tube Connector for Air Conditioning Exhaust Port