Features: Thread air conditioning Exhaust Hose Coupler seamlessly connects square and round ducts for efficient heat removal, suitable for 150mm portable units. Crafted from ABS, this lightweight adapter ensures flexible installation via clockwise/counterclockwise threading while minimizing operational wind noise. Ideal for homeowners, renters, and small space dwellers seeking to optimize portable air conditioning in apartments, studios, or temporary cooling setups. Perfect for windowless rooms, garages, or home offices where secure exhaust hose attachment prevents heat buildup and maintains comfortable indoor temperatures. Simplify maintenance with this square to round connector – its compatibility works across major for year round reliability. Specifications: Component:ABS Size:Approx.180mm/7.1inch Package Includes: 1Pc Exhaust Hose Adapter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.