Fire hose coupling is the crucial connector attached to the end of a fire hose that allows it to be connected to a water source (like a hydrant or pump), another hose to extend its length, or a nozzle.
British Coupling is not a specific brand or model of coupling, but refers to the threaded quick couplings used in British standard fire hydrants, fire hoses and fire truck pump systems.
Fire hose coupling is the metal fitting attached to the end of a fire hose, allowing multiple hoses to be connected together (to extend length) or to be connected to other equipment like hydrants, fire pumps, nozzles, and monitors.