Hydra-Storz Rapid Connecting System is designed to speed up your LDH connection to a fire hydrant at the scene. Our patented design gives you a built-in check valve type feature to help prevent foreign objects from being introduced back into the hydrant system. The Hydra-Storz Rapid Connecting System is made of high-quality materials forged from 6061 Aircraft Grade Aluminum heated to a T-6 Temper then finished off with a MIL-A-8625 (MIL-SPEC) Hard Coat Anodize Finish, which provides a superior finish to help withstand against harsh environments. Standardize your hydrants today with the Fyrelane USA Hydra-Storz Rapid Connecting System. Ready to start? Reach out to a Hydra-Storz Rapid Connecting System specialist today by calling 1-855-359-9555. For more information visit https://www.fyrelaneusa.com/hs_products/hydra-storz-adapters/