3.5" NPT Female x 4" NH (NST) Male Adapter Aluminum DMH40F40F these hoses have made great

these hoses have made great personal hammocks and sandbags

and you can unhook them at 50

The NST (NH) Female side of the adapter hook into NST (NH) Male

5" NPT Female Pipe To 1

5" NH/NST aluminum couplings

3.5" NPT Female x 4" NH (NST) Male Adapter Aluminum DMH40F40F these hoses have made greatSpecifications Female Side 1 3. 5 NPT Female (National Pipe Tapered) Male Side 2 4 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