3.5" NPSH Female Swivel x 2.5" NPSH Male Adapter Aluminum NH (NST) x NPSH All these hoses will fit

All these hoses will fit into all standard sized fire hydrants

Max Pressure Rating - 280 PSI

5" NPT Female Pipe x 1

but it appears that it was designed to be mounted

or garden hoses for increased pressures

3.5" NPSH Female Swivel x 2.5" NPSH Male Adapter Aluminum NH (NST) x NPSH All these hoses will fitSpecifications Female Side 1 3. 5 NPSH Female (National Pipe Straight Hose) Male Side 2 2. 5" NPSH Male (National Pipe Straight Hose) 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