Secure and simple coupling: Leakproof design with tool convenience delivers a reliable threestep installation for portable AC hose setups, ensuring compatibility and stable connection. Multiuse compatibility: Offers flexible support for multiple devices and exhaust configurations, enabling use in diverse settings for consistent performance. Efficient cooling and airflow: Designed to minimize airflow blockage and speed up exhaust release, helping maintain comfortable temperatures with minimal effort. Durable construction: density material with a singlepiece molded body provides deformation resistance, longlasting stability, and good resistance to pressure and wear for reliable performance. Use scenarios Home apartment or small living space: Connect portable AC hoses to a window vent using the coupler for a secure, leakproof exhaust path that supports quick setup and stable operation. Workshop or garage: Adapt to various exhaust configurations to vent hot air outside, maintaining a comfortable work environment with reliable performance across different hose setups. RV or camper use: Plug into different hose types and window adapters to efficiently vent portable AC cooling air, offering versatile compatibility for travel scenarios.