Knox Box FDC Lock 3" Male NH/NST Locking Cap (Swivel-Guard) Model:3159 (6.0 TPI x 3.623 OD) If debris larger than the

If debris larger than the drilled holes should enter from the dry hydrant outlet located roadside it would not be able to be flushed out into the water source

There are two types of storz gaskets

In addition there are two different sized slots incorporated into the wrench handle for use as a gas cock shut off

This pump meets or exceeds the testing standards for NFPA 1962

Knox Box FDC Lock 3" Male NH/NST Locking Cap (Swivel-Guard) Model:3159 (6.0 TPI x 3.623 OD) If debris larger than theKnox FDC Locks protect fire department connections (FDCs), keeping pipes clean of debris to ensure the delivery of high pressure water flow to fire sprinkler systems. Swivel Guard versions also enhance security against vandalism. Operated with a Knox Keywrench. Ensures ready and reliable connections to fire sprinkler systems FDC Swivel Guard brings added protection against vandalism Protects check valves from freezing in cold climate areas Eliminates