I created this by measuring the original seal provided by a friend who couldn’t locate the corresponding spare part online. It was printed using 100% TPU with the flat side facing downward, without any support structures. I’m confident it will fit properly. I had to print at high resolution with a layer height of 0.12 mm and adjusted the overhang to a tapered shape to avoid the need for support material, which can be difficult to remove. I also doubled the inner seal ring to ensure better contact.