2.5" NH (NST) Female LH x 4" NH (NST) Female LH Swivel Adapter Aluminum Female Long Handle 2-1/2" inch camlock connectors are

2-1/2" inch camlock connectors are widely used with pumps

You can check the nozzles section here

It's one of the most popular and common way to hook your hoses together

**UL Listed to 400 psi and FM Approved

8" Aluminum Female Camlock To Female Pipe Adapter

2.5" NH (NST) Female LH x 4" NH (NST) Female LH Swivel Adapter Aluminum Female Long Handle 2-1/2" inch camlock connectors areSpecifications Female Side 1 2. 5 NH (NST) Female Swivel (National Hose National Standard Thread) Female Side 2 4 NH (NST) Female Swivel (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