This thing can be handy... its 1/2". Just use bushings. There are other variations depending on how many outlets you need... most all are 1/2"... so just adapt however you need...

https://www.amazon.com/Rain-Bird-RISMAN1S-Irrigation-Sprinkler/dp/B00W6YV3QI/ref=asc_df_B00W6YV3QI/?tag=hyprod-20&linkCode=df0&hvadid=193139379506&hvpos=1o2&hvnetw=g&hvrand=10690908299834613901&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9013526&hvtargid=pla-307722535595&psc=1