Aluminum 4 1/2" NH Rocker Lug Cap Threads_NH Square heads up to 1

Square heads up to 1 1/4 inch

or an adapter

National Pipe Tapered is common in plumbing and some industrial uses

(New York Fire Department/Fire Department of New York)

One piece wall bracket (14 gauge) for easy mounting

Aluminum 4 1/2" NH Rocker Lug Cap Threads_NH Square heads up to 1Aluminum 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. Gasket installed.