5" Storz Lock Cap & 4" NPT 30° Elbow Gasket Adapter Kit Material_Brass 3 inch NH / NST

3 inch NH / NST fittings measure approximately 3 5/8"

Because every Knox FDC Wrench operates every Knox locking cap in every jurisdiction nationwide

a non-hazard)

Bale shut-off valve allows user to maintain a consistent nozzle pattern while turning water flow on and off

5" Storz Lock Cap & 4" NPT 30° Elbow Gasket Adapter Kit Material_Brass 3 inch NH / NSTThe 5" Knox Storz Lock is operated with a Knox FDC Wrench controlled by the Fire Department. To ensure the Knox Storz Lock properly fits, the Knox Company strongly encourages the use of connections that meet the adapter specifications. The Knox Storz Lock protects large diameter Fire Department connections (FDC) from accidental damage, vandalism and physical attack. Since the locking cap holds water pressure, it can be installed on hydrants. The Knox