|There is a blank nozzle available as part of the Low Angle Nozzle Set (Part Number 233200), which can be inserted into the PGP to shut off the flow of water.|
Remember the riser will still pop up as if the rotor was still going to water so be sure not to use the plug as a permanent alternative to capping the head off properly. These nozzles should be used as temporary plugs to help flush lateral lines and assisting in maintenance procedures.
The blank nozzle will need to be taken out if the system is to be winterized. Capping or removing a sprinkler must be done differently if the area you live in requires winterization.