Aluminum 4" NH to 2 1/2" NH Double Female Female Threads_NYC or an adapter

or an adapter

Compatible part number - DMH4045F

Storz suction gaskets are thicker than storz pressure gaskets to prevent air from entering during suction hose applications

Chemical Fire Protection

Aluminum 4" NH to 2 1/2" NH Double Female Female Threads_NYC or an adapterAluminum 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