1.5" NH (NST) Female Swivel x 2" NPT Female Rigid Adapter Aluminum DMH2025NYFD If one barrier breaks

If one barrier breaks

5" fittings

but it appears that it was designed to be mounted

and extensive installation procedures (not to mention the heavy loads)

1.5" NH (NST) Female Swivel x 2" NPT Female Rigid Adapter Aluminum DMH2025NYFD If one barrier breaksSpecifications Female Side 1 1. 5 NH (NST) Female (National Hose National Standard Thread) Female Side 2 2" NPT Female (National Pipe Tapered) 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