Miflex hoses feature an external nylon safety braiding designed to outperform and outlive traditional rubber hoses. Designed for/ with H/P (gauges), BCD and low pressure (regulator) fittings. With UNI EN12164 CW 614N chrome plated brass sleeves and fittings. Made in Italy. Polyurethane compound liner Polyester inner layer with nylon outer layer braiding. Oxygen cleaned and tested at the factory. Miflex Carbonin HP hoses, are more robust and have more flexibility with electroless nickel plated fittings. Developed for Dive Centers who use hoses every day with different divers & different configurations, and for divers who perform expeditions where contact with rocks and wrecks are more frequent.