This is a replacement part for a Toro 570 pop up sprinkler. It is for a 6 inch sprinkler but you could modify to shorten if needed. This is not for the Z series and does not have the new outlet hole that the Z series has but it might still work.

I had an older sprinkler riser break and couldn't find a replacement part. I printed in ASA but you could probably get away with PETG. I hope you find this helpful.