Two angles because I made one, it worked perfectly, but wasn't at the angle normal sprinkler heads are, so I increased the angle. Both work well, second one in action.
Made for a can with a 18.5mm diameter push-fit nozzle.
Printed in PETG, 0.2 layer height. 4 walls, 5 top and bottom so that the perforated surface is solid (1mm thick)
The author hasn't provided the model origin yet.