Tool assembly: achieve a secure and leak fit with a simple threestep process that eliminates the need for tools and speeds up installation for portable AC hose connections. Versatile compatibility: improved flexibility to support exhaust systems and adapt to multiple devices, ensuring compatibility across a range of uses and setups. Stable temperature control: reduces airflow resistance with a flowguiding design that enables rapid exhaust discharge, contributing to consistent cooling performance and user comfort. Durable onepiece design: density material molded in a single piece provides deformation resistance and longlasting stability, with resistance to pressure and wear. Practical compatibility and performance: designed to fit standard portable AC hoses and common exhaust configurations, delivering reliable sealing and stable operation. Specifications and materials: density material, singlepiece molded construction, engineered for deformation resistance and durable performance under pressure and wear. Use scenarios: In a small apartment with a portable AC, connect the hose quickly and securely without tools, making it easy to move the unit between rooms. In a camper or RV, adapt to different exhaust hoses and maintain an efficient venting setup in tighter spaces. In dorms or offices, use across multiple devices and hose configurations to provide flexible, reliable cooling where needed.