Lockout Slide Valve, 1/4" FPT x 1/4" MPTSlide Valves allow air to flow in the open position, when in the closed position the valve shuts air flow, and vents downstream pressure. All models have the ability to install a lock to prevent unauthorized use.Brass ConstructionLockable to Prevent Tampering or Unauthorized UseMade in USAProduct InformationDescriptionLockout Slide Valve, 1/4" FPT x 1/4" MPTUPC ID029292217866