Knox Box Standpipe Lock 2 1/2" Female NH/NST Locking Cap Pick One Side_6 inch The female threads on this

The female threads on this hose will connect to a 1 1/2 inch PVC or NPT metal pipe

50 foot 1 1/2" pin rack hose with brass NH / NST threaded couplings

The outside diameter of a 3 inch NPT or NPSH male hose coupling is 3 1/2 inches

so always verify the correct specifications with your local fire department before ordering

Aluminum 1 inch NH / NST quarter Turn Forestry Coupling

Knox Box Standpipe Lock 2 1/2" Female NH/NST Locking Cap Pick One Side_6 inch The female threads on thisThe Knox Standpipe Lock protects standpipes, fire and wall hydrants from accidental damage, vandalism, and physical attack. Since the Knox Standpipe Lock holds water pressure, it can be installed on hydrants. The Knox Standpipe Lock is available for 2. 5 connections with varying thread options and is operated with a Knox FDC Wrench controlled by the Fire Department. Protects dry and wet standpipe outlets in stairwells from vandalism Reduces