Constructed from premium 304 stainless steel for exceptional durability and longevity in demanding environments. devised for high temperature and negative pressure applications, ensuring reliable performance in vacuum systems. Flexible devise allows for easy installation and adaptability to various configurations and setups. erosion and wear-resistant properties make this bellows expansion hose ideal for chemical processing and laboratory use. Successfully passed helium leakage tests, guaranteeing a secure and efficient sealing solution for your vacuum systems., Manufacturer: XEINNILL