This nozzle holder made of nylon with back-pressure valve fixed by an external thread 1/4" NPT. At the pressure up from 0,7 bar the back-pressure valve is opening. Max. pressure for this nozzle holder is up to 9 bar, the max. flow 7,6 l/min. Length of holder 51 mm, nozzles can be fixed by a nozzle cap with 11/16" internal thread.
