Quick Details Place of Origin: Shanghai, China (Mainland) Brand Name: OEM Model Number: ESFR Product name: Fire Fighting brass cap & chain with chrome plated Material: Brass Certificate: ISO9001:2008 Working Pressure: 1.6Mpa Application: Fire Fighting Emergency Rescue Type: OEM Size: 1.5"/2"/2.5"/customized Connecting thread: 1/2'inch/3/4inch/1inch Functions: Protection Response: Standard Fire hose coupling is the connection between hose and hose, fire truck, fire hydrant, fire nozzle, used for carrying water or foam mixture for fire fighting. 1. Strength test pressure: 2.4MPa Sealing test pressure: 1.6MPa Working pressure: ≤ 1.6MPa 2. Size: 1''-5''