The model has two main added features - this lid has ventilation holes on the sides and top which avoids condensation build up and has a hinged lid, as to not remove the whole lid each time water is being added. The hinge is modeled to be used with a string of filament (use a lighter on the ends of the string to widen them).
I have printed mine in PETG (original lid is PET) and used it for several weeks without any signs of deformation. Printed it in 0.2 layer height, using taller layers might cause issues for the lid hinges.
The author remixed this model.