6" NPT Female x 4" NPT Male Adapter Aluminum Intake Valve and you'll be required to

and you'll be required to buy both a suction hose and discharge hose

Synthetic Double Jacket

Hose Shank Inside Diameter: 2-1/2" (Barb)

Fire hose is built & tested per NFPA standards and is UL listed to 200 PSI

6" NPT Female x 4" NPT Male Adapter Aluminum Intake Valve and you'll be required toSpecifications Female Side 1 6 NPT Female (National Pipe Tapered) Male Side 2 4 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 8. 1 Through 8. 2 USDA