This is a replacement for the back top panel (just before the tophat) to mount the HEPA filter by JNP found here. No additional hardware required beyond what is needed for the filter itself. You'll find a notch at the bottom for the fan cables. Recommended to print in ABS/ASA with Voron recommended print settings:
When installing, you might want to already have the filter mounted to make it easier to mount as the screws may be hard to reach afterwards. Use a ball-point wrench to tighten/loosen so that it can be used at an angle. Just mind the belts and the motor deck.
The author marked this model as their own original creation.