Orbit Saturn III Sprinkler Spray Nozzle Insert

This insert allows you to change the flow rate on a Orbit Saturn III gear drive spray head. These are cheapy lawn sprinker heads available at box stores like HD and Lowes, and on line at Amazon. I was replacing two heads on an existing zone, but the stock nozzle had way too much flow, creating a swimming pool, and causing too much of a pressure drop. There is a set of replacement inserts available from Orbit that have different flow rates, except they are a special order to HD for under $