supply fire hose nozzel in British type , Amercian type,German type. 1.Far coefficient distance 2.Large flow supply fire hose coupling according to your requirements 1. nominal diameter: 50-80mm2. working pressure3. type: American type coupling, German type coupling,British type coupling4. material : aluminum5. size: 1",1.5",1.75",2",2.5", Aluminium storze jet nozzle