This is a remix of AMS Silica box with window and hygrometer hole (https://makerworld.com/en/models/391973) with the the hygrometer hole removed, but the window kept.

If you have a hygrometer, you may want to print one of this and two of those, or two of this and one of those, based on how many hygrometers you want in your AMS (since they don't always show near the same number). This design stores about 2.5 times as many silica beads compared to the one which takes up space for the hygrometer.

You'll need a 0.84" diameter circle of plastic. I used a craft cutter machine to cut the lid of a clear plastic berry carton I grabbed from the recycle.