
Suitable for SPU check valves in gas pipe connections. [High quality material] Made of high quality copper and plastic. No more worrying about pipes slipping. [Easy to install] No additional gaskets required. Simple nested design ensures a tight connection with various piping materials. Obstacle-free installation. [Universal compatibility] Specially designed for gas pipes with a diameter of 6 mm, this valve is ideally suited and offers a hassle-free solution for industries where airflow safety is important.