Professional drain cleaning nozzle for industrial use. Steel bullet head with 1 forward facing jet and 3 rear facing jets, these help to cut a hole through the obstruction and the rear facing jets to drive the nozzle ahead so undermining the blockage and clearing the way. Max. working pressure 5500 PSI / 380 Bar up to 36 litres / minute. 050 nozzle size, 0.75mm diameter nozzle. 3/8" female screw thread connection.