Features: 1) Used in gas heaters, showers, toilet, cleaners, wash basins, water troughs and industry water supply . Can be bent freely while the inner diameter remains intact. 2) Easy to install,Reliable and durable , Elegant appearance,Can handle extreme pressure. 3) Mainly used for tubing that connects gas heaters, shower devices, sewers, cleaners and polishers. 4) Hose corrugation: annular wave. 5) Hose material: SUS304, SUS316, SUS316L. 6) Ends material: nickel-plated brass. 7) Length: 20-30m.or product according to users request