4" NH (NST) Male x 6" NH (NST) Male Adapter Aluminum HA15T10F and might require an MPPT

and might require an MPPT or pump controller

Since these scrap hoses are not recommended for water because of leaks

figure with the standard power and efficiency loss through the wire length

Inlet Size 1-1/2"

Large Diameter Discharge Hose For High Water Flow

4" NH (NST) Male x 6" NH (NST) Male Adapter Aluminum HA15T10F and might require an MPPTSpecifications Male Side 1 4 NH (NST) Male (National Hose National Standard Thread) Male Side 2 6 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