For any of you who have lost the key to open your irrigation box, this is for you. This key is for the brand, Rain Dial but may work with others that use a six bladed twist key.

I printed this upright but it can be done on it's side if you don't mind a fair amount of support cleanup with an xacto knife.

Printing this upright requires some support as well but nothing too difficult to remove, even when using PETG.