2.5" NPSH Male x 4.5" NPSH Male Adapter Aluminum SM25F30F Generally speaking

Generally speaking

completely unobstructed waterway allows more GPM at lower pressures than any competitive brand

Using 4" Yellow Rubber Nitrile Fire Hose Without Fittings (250 PSI Service Pressure)

Fire & Industrial 5” NPSH x 6” NPT Double Male Fitting Anodized Aluminum

Industrial & Fire Grade 1” NPSH x 1

2.5" NPSH Male x 4.5" NPSH Male Adapter Aluminum SM25F30F Generally speakingSpecifications Male Side 1 2. 5 NPSH Male (National Pipe Straight Hose) Male Side 2 4. 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 Through