Filament Grommet

My dry box is located on the shelf below my printer in its enclosure. This means that the filament needs to pass through the shelf to be accessible to the printer. Since the box can store multiple spools I want to be able to access all of spools from within the enclosure to make filament changes easier, so this 'grommet' has multiple ports to accept each of the bowden tubes that is fed out of the box.

I also want to be able to remove the dry box while leaving all of the bowden tubes attached, so the grommet is actually two pieces. The outer piece passes through the shelf and is held in place by one set of clips. The inner piece fits into the outer and is held in place with its own clips so it can be removed when the box needs to be accessed.

While I've designed this to allow the filament to pass through a shelf below the printer it could be inverted to pass filament from above.