Naan 423AG 1/2" Brass PC Sprinkler 4.0mm Nozzle

Specifically designed for use around field edges and headlands, also an excellent, heavy-duty, landscape irrigation sprinkler. Often used in bush fire suppression systems.
 
Can be used as a part circle or full circle sprinkler simply by flicking up the trip spring
Recommended operating pressure range of 2.0 to 4.0 bar
Special hammer ensures water stays within boundaries
Radius of throw can be adjusted by stream deflector and also by diffuser screw
Heavy-duty metal construction for enhanced sprinkler life