4.5" NH (NST) Female (Rigid Long Handle) x 4.5" NPT Male Adapter Aluminum 4" Inch NPSH Previous Working Pressure - 250

Previous Working Pressure - 250 PSI *No Longer Valid (For Reference Only)

so you can latch your hoses onto your outlets within seconds

or operated by someone who is very strong

Inside Diameter - 5" Inches

The difference is just that

4.5" NH (NST) Female (Rigid Long Handle) x 4.5" NPT Male Adapter Aluminum 4" Inch NPSH Previous Working Pressure - 250Specifications Female Side 1 4. 5 NH (NST) Female (National Hose National Standard Thread) 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