dessicant cap for the supertrickler. helps keep dust and humidity out of the powder hopper.
Fill the case with dessicant and then put the cap on.
I printed the cap in esun 95A TPU and the case in Hatchbox PETG on my Bambu X1C.
If your slicer and printer supports STEP files, use that. It will provide much better print quality than the STL files.