3" NPSH Female x 1.5" NPSH Male Adapter Aluminum FM2525F A better option is the

A better option is the Econoforest (Household

5" NYFD female hose x 3/4" garden hose male pin lug

Using 1" Yellow Rubber Nitrile Fire Hose Without Fittings (300 PSI Service Pressure)

If you need a certified fire hose that can do 400PSI

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3" NPSH Female x 1.5" NPSH Male Adapter Aluminum FM2525F A better option is theSpecifications Female Side 1 3 NPSH Female (National Pipe Straight Hose) Male Side 2 1. 5 NPSH Female (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 236 8. 1