1.5" NPSH Female x 1" NPT Male Adapter Aluminum DMH3025 you'll need a 1-1/2 inch

you'll need a 1-1/2 inch fire hose nozzle equipped with 1-1/2" fittings

Fire hydrants

Industrial & Fire 4” NH (NST) Female x 2

5" NST Male side of adapter can hook into NST

1.5" NPSH Female x 1" NPT Male Adapter Aluminum DMH3025 you'll need a 1-1/2 inchSpecifications Female Side 1 1. 5 NPSH Female (National Pipe Straight Hose) Male Side 2 1 NPT Male (National Pipe Tapered) 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 8. 1 Through 8. 2