Includes O-ring.
The nozzle used in the ST-73 foamer must be selected to suit the specifications of the pressure cleaner being used.
Use the specifications of the pressure cleaner to determine the nozzle sizing required. *See the chart on final page of the document below (Product Information tab).
Please note: As an easily visible indicator of the installed nozzle size, the nipple on the chemical pick up hose can be colour coded.
