Been using your GLS Fab tig cup for a while now and filled the diffuser with a bit of back-splash? You can replace it with one of these nice new diffusers. It is tricky to fit them though and will probably take a few goes to get right.
Included in this pack is 1x spare stainless steel multilayer mesh diffuser.
Should suit both PTFE and Ceramic GLS Fab tig cups.