Critical Zone Valve

Since 1979 Hydra-Shield Manufacturing, Inc. has been the leader in the Hydrant Security Industry, designing and manufacturing the highest quality fire hydrant locks, devices, accessories, and valves, including the Custodian Hydrant Lock.

Through the FyrelaneUSA brand, Hydra-Shield assists Fire Departments in responding to emergencies with the Pre-Con Valve — the only automatic inlet control valve on the market today — and the Hydra-Storz adapters that speed up emergency response performance.