2.5" NH (NST) Female Swivel x 3.5" NH (NST) Male Adapter Aluminum HA20T25F You don't need any special

You don't need any special tools to operate this Camlock adapter

Male Side 1 – 3” NH (NST) Male (National Hose / National Standard Thread)

Inside Diameter - 1 1/2"

expect to get 6 solid hours of pumping time per day

Industrial & Fire 4” NPSH Female Swivel x 3” NPSH Male Rigid Fitting Anodized Aluminum

2.5" NH (NST) Female Swivel x 3.5" NH (NST) Male Adapter Aluminum HA20T25F You don't need any specialSpecifications Female Side 1 2. 5 NH Female (National Hose National Standard Thread) Male Side 2 3. 5" NH 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