Construction: Made from robust ABS plastic for durability and long service life, providing a reliable connection for daily use. Compatible sizing: Designed for ventilation ducts with diameters of 130 mm and 150 mm, integrating smoothly into your air conditioning setup. Effective sealing: Delivers a tight fit with the air conditioning pipe, preventing leaks and entry of insects or debris, which helps maintain cooling or heating efficiency. Userfriendly design: Features a common thread that accommodates both clockwise and counterclockwise connections, simplifying installation and reducing setup confusion. Use scenario 1: Ideal for portable air conditioners with 130/150 mm exhaust hoses, enabling a secure, sealed connection to exterior venting. Use scenario 2: Suitable as a replacement or upgrade part for window kit setups and ducting systems in homes, apartments, or small offices that use 130/150 mm ducts. Use scenario 3: Useful in temporary or mobile cooling applications in garages, workshops, or equipment rooms where 130/150 mm ducting is employed and a reliable seal is needed.