Aluminum 4 1/2" NH to 4" NH Double Female Female Threads_NPT Baked red enamel finish

Baked red enamel finish

If possible it is best to measure the MALE fitting

Fire hydrant ball valve 2 1/2 inch NH / NST swivel inlet x 2 1/2 inch NH / NST outlet

The rubber lining is a single-ply extruded tube of synthetic EPDM compounded to resist ozone

Aluminum 4 1/2" NH to 4" NH Double Female Female Threads_NPT Baked red enamel finishAluminum 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. A double swivel adapter will not swivel or rotate once both ends are tightened to the male connections. The Safe Water Drinking