Aluminum 3" Female NH to 3" Male NPT Pick One Side_6 inch If it measures approximately 3

If it measures approximately 3 inches

The outside diameter of a 3

Features gasketless precision machined metal face storz connection for superior durability and weathering

Base pan design has additional side walls eliminating tank damage

Aluminum 3" Female NH to 3" Male NPT Pick One Side_6 inch If it measures approximately 3Aluminum adapters are fabricated from seamless extruded 6061 T6 aluminum and hard coat anodized per MIL A 8625 Type III, Class 1. Threads have a blunt start Higbee cut with indicators on adjacent lugs. Part identifications are permanent and stamped prior to hardcoat. Adapters and components meet the requirements of NFPA 1963. Note 3 inch NH NST is very rare and is often confused with 2. 5 inch NH NST which is very common. If you have a fire department