2.5" NH (NST) Female Swivel x 3" NPT Male Adapter Aluminum Best Deal Bulk Quantity Color - Yellow (Color Treatment

Color - Yellow (Color Treatment Adds Durability To Outer Jacket Of Your Hose)

Adjustable Spray Patterns - Shut Off - Solid Stream - Fog

Male Side 2 – 4” NPT Male (National Pipe Tapered)

But it's always best to check the markings on the hydrant

2.5" NH (NST) Female Swivel x 3" NPT Male Adapter Aluminum Best Deal Bulk Quantity Color - Yellow (Color TreatmentSpecifications Female Side 1 2. 5 NH (NST) Female (National Hose National Standard Thread) Male Side 2 3" 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.