4" NH (NST) Female x 4" NPT Male 30 Degree Elbow Aluminum DMH1510F You can be sure these

You can be sure these USA manufactured fittings will meet your needs

Female Side 1 – 4” NPSH Female (National Pipe Straight Hose)

Standards Met - UL Classified

Industrial & Fire 5” Storz x 4” NPSH Female Long Handle Swivel Fitting Anodized Aluminum

NFPA Compliant Fire Hose Pin Rack For 1-1/2" and 2-1/2" Hoses

4" NH (NST) Female x 4" NPT Male 30 Degree Elbow Aluminum DMH1510F You can be sure theseSpecifications Female Side 1 4 NH (NST) Female (National Hose National Standard Thread) Male Side 2 4" NPT Male (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 8. 1