4.5" NPT Female x 2.5" NH (NST) Male Adapter Aluminum old fire hose nozzle 5" NPSH Male Hex Pipe

5" NPSH Male Hex Pipe Adapter

there is no stronger hose available

5" NYC Female Pipe x 3/4" NPT Male Pin Lug Adapter

Fire & Industrial 3/4” GHT x 1” NPT Double Male Fitting Anodized Aluminum

4.5" NPT Female x 2.5" NH (NST) Male Adapter Aluminum old fire hose nozzle 5" NPSH Male Hex PipeSpecifications Female Side 1 4. 5 NPT Female (National Pipe Tapered) Male Side 2 4. 5 NH (NST) Male (National Hose National Standard Thread) Working Pressure 300PSI Max Test Pressure 1000PSI Max Material T 6061 Aluminum (Aircraft Grade) Finishing Anodized (99. 9% Lead Free) NFPA Standards 1963, 4. 12, 5. 1 5. 6. 4 (Corrosion Resistance) Military Standards MIL A 8625 Type III, Class 1 Industrial Standards International ASTM B221 UL Labs Standards 236