Here are a set of fittings that can be used to connect a standard pneumatic push fitting to threaded adapter, to the Esun Filament Drier Box, such that it fits in the slot. The original 45 degree design was alright, but with new spools in the box, it can be a bit tight and wear the top edge, so I created a more aggressive 50 degree version with channel to easily allow the filament pull to be more vertical.