Hunter Shutoff nozzle for PS Ultra and Pro-Spray Sprinkler Bodies Easily cap off the spray head at the nozzle using the Shut-off Nozzle/Cap which allows for the shut-off of all Hunter Spray models as well as any model spray head with a male threaded riser. The shut-off nozzle allows for easy shut-off of a spray system while keeping the spray heads visible. Features Compatible with all brands of spray heads with male threaded risers (Hunter, Rain Bird, Irritrol, Weathermatic, K-Rain) DOES NOT WORK with spray heads that have female risers (Toro and some other brands carry female riser spray heads, must be a male threaded riser) Can also be used as a Drip Indicator if retrofitting an existing spray system to Drip