Filament filter for 6 mm PTFE filament tubing. I'm using to clean and lubricate filament as soon as it leaves the spool and enters the filament tube. Also lets you join two filament tubes together.
This is a remix of ppyromann's Threaded Filament Dust Filter. I used Netfabb to make cuts and orient the parts as well as repairs. Meshmixer was used to combine the parts.