A replacement lid for the Paterson System 4 daylight film developing tank.
Printed in TPU.
Quite a tight fit, still a tiny bit leaky but I've found these tanks always were.
Printed in TPU
0.3mm layer height, 100% Infill
Variable layers from 2.1–2.8mm @ 0.1mm to better define the fillet.
The author hasn't provided the model origin yet.