Securely fits vertical / horizontal sliding window and standard 5.9 inch exhaust hoses, enabling easy installation for mobile air conditioners in apartments, garages, or temporary workspaces Compact and energy efficient design ensures optimal sealing with its leak proof structure, cool air loss and blocking outdoor heat for enhanced cooling efficiency—ideal for portable air conditioners accessories and exhaust hose adapters Tool easy assembly and design simplify seasonal setup / removal, making it a must have exhaust hose adapter for maintaining energy efficient cooling across multiple portable brands Ideal for homeowners, renters, and workshop managers seeking space saving solution to optimize portable in residential,, or industrial environments produced of premium, this pressure resistant exhaust hose connector maintains structural integrity under frequent use, offering long term durability without deformation as a versatile air conditioners connector, Manufacturer: YIGZYCN