2" NPSH Male x 2.5" NPT Male Adapter Aluminum FM20S15 The difference is just that

The difference is just that

Construction Wash Down

Coupling Materials - Choose Hardcoat Aluminum or Brass

The cotton can be removed if desired

Polycarbonate

2" NPSH Male x 2.5" NPT Male Adapter Aluminum FM20S15 The difference is just thatSpecifications Male Side 1 2 NPSH Male (National Pipe Straight Hose) Male Side 2 2. 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 Through 8. 2 USDA