4" NH (NST) Female x 4.5" NH (NST) Male Adapter Aluminum SM15S15F You won't be disappointed

You won't be disappointed

5” NH (NST) x 4” NPT Double Male Fitting Anodized Aluminum

While this hose is no longer fit to carry water and is not certified for firefighting

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4" NH (NST) Female x 4.5" NH (NST) Male Adapter Aluminum SM15S15F You won't be disappointedSpecifications Female Side 1 4 NH (NST) Female (National Hose National Standard Thread) 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