Finding a DIRECT DRIVE EXTRUDER FILLER ORDERCODE: K8400-EMP-F

Hi - does anyone know where I can source some new DIRECT DRIVE EXTRUDER FILLERS, ORDERCODE: K8400-EMP-F?

The K8203 kit comes with two, but I’ve managed to block one with filament & keen to get some replacements, just in case…

Thanks

Tim