4" NPSH Female Swivel x 4.5" NPT Male Adapter Aluminum Polyester Fire Hose 1-1/2" size hoses will produce

1-1/2" size hoses will produce higher amounts of pressure

If you have higher water pressures you'll need to get it banded with stronger clamps and a clamping tool

5" NYFD Female to 3/4" NPT Male

Industrial & Fire 2” NH (NST) Female Swivel x 1

4" NPSH Female Swivel x 4.5" NPT Male Adapter Aluminum Polyester Fire Hose 1-1/2" size hoses will produceSpecifications Female Side 1 4 NPSH Female (National Pipe Straight Hose) Male Side 2 4. 5" 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