4" NPT Female (Rigid Long Handle) x 3" NH (NST) Male Adapter Aluminum HA15NYFD15T you can easily choose which

you can easily choose which is best for your application

5" Aluminum NH / NST connections

water truck operators

boat dock lining

We hooked the panels together using a parallel connection

4" NPT Female (Rigid Long Handle) x 3" NH (NST) Male Adapter Aluminum HA15NYFD15T you can easily choose whichSpecifications Female Side 1 4 NPT Female (National Pipe Tapered) Male Side 2 3 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 8. 1