4" NPSH Female x 2.5" NH (NST) Male Adapter Aluminum SM25F30F You can be sure that

You can be sure that your double jacket fire hose will see you through any application

This hose fits right into the fire hydrant: no adaptions

2" Male Camlock To Male Pipe Adapter

5" NPT Female x 2" NPT Male Pin Lug Adapter

4" NPSH Female x 2.5" NH (NST) Male Adapter Aluminum SM25F30F You can be sure thatSpecifications Female Side 1 4 NPSH Female (National Pipe Straight Hose) Male Side 2 2. 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 Labs Standards