4" NH (NST) Female x 2.5" NPSH Male Adapter Aluminum Rubber Fire Hose custom threads are available upon

custom threads are available upon request

Hook two different sizes of hose together

Standards Met - UL Classified

3" NPT Male: Can Connect To Any 3" Female Female Pipe Threads PVC

The NPT Female side of the adapter can hook into NPT Male only

4" NH (NST) Female x 2.5" NPSH Male Adapter Aluminum Rubber Fire Hose custom threads are available uponSpecifications Female Side 1 4 NH (NST) Female (National Hose National Standard Thread) Male Side 2 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