4" NPT Female (Rigid Long Handle) x 5" NPSH Male Adapter Aluminum FM1515F Aluminum or brass couplings are

Aluminum or brass couplings are corrosion resistant

There's no better material than thick polyester fire hose

They never require drying

5” NPSH Female x 1" NPSH Male Fitting Anodized Aluminum

B500     5 lbs

4" NPT Female (Rigid Long Handle) x 5" NPSH Male Adapter Aluminum FM1515F Aluminum or brass couplings areSpecifications Female Side 1 4 NPT Female (National Pipe Tapered) Male Side 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 Through 8. 2 USDA