3" purge plug for my fellow tig welders out there. this thing is designed to be used with about 2.85" and larger tubing with a 3" maximum. shes a nice tight fit so be sure your printer is up to snuff.

• for a nice flexible one, print with 10% infill
• for a purge plug useful only as a hockey puck: print with 80%+ infill
• this should be obvious but this is only useful if printed with TPU!!!