Aluminum 3" Female NPT to 3" Male NH Female Threads_NPT The present name was adopted

The present name was adopted in 1969

Sign mounts using 2 approximately 3/8" holes aligned vertically along the center line

Storz spanner wrench

It is NOT recommended to us an adapter where the suction hose meets the strainer as the additional weight can upset the balance of the unit

5 inch NH / NST

Aluminum 3" Female NPT to 3" Male NH Female Threads_NPT The present name was adoptedAluminum 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