Diaphragm nozzle holder from the manufacturer Lechler, system Twist-Lock. For the montage on a pillar pipe with a double hose connection over a grommet 13 mm. Pressure range 0,7 up to 20 bar. On the Lechler Twist-Lock system only fits a Lechler Twist-Lock nozzle cap. Please mention the diameter of your pillar pipe. Fitting on a 1/2" pipe with drilling ø 7 mm or 3/4" pipe with drilling ø 10 mm.