3.5" NH (NST) Male x 3.5" NPT Male Adapter Aluminum DMH1510 Pressure-regulating Select-O-Matic nozzles automatically adjust

Pressure-regulating Select-O-Matic nozzles automatically adjust to fluctuating water flow to maintain effective pressure and a consistent fire stream in all flow ranges

and it is still functional

GHT - (Garden Hose Thread)

soldered the wires to the panels until all were hooked in a parallel line

Change Threads From 1" NPT Pipe To 1

3.5" NH (NST) Male x 3.5" NPT Male Adapter Aluminum DMH1510 Pressure-regulating Select-O-Matic nozzles automatically adjustSpecifications Male Side 1 3. 5 NH (NST) Male (National Hose National Standard Thread) Male Side 2 3. 5 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