This is a replacement for the lid on the water container of our Optima Aurora, which is not easy to get on, will spill water if you try to use it by pouring in and if left out will allow in anything flying IE insects, dust, (bad language). I printed it on a Bambu X1 Carbon first in white at 0.28 L/height as a tester then in black on fine settings to match the water heater. Printed in Bambu Black/White Basic. Designed in Tinkercad