Gas Saver Set "Gassaver" for the small TIG torches SR9 and SR20.
Different diameters see variants

Save up to 40% gas!
The gas saving set offers a better gas cover compared to standard collet housings.
The tungsten electrode can protrude up to 6 times the electrode diameter
Pyrex glass gas nozzle for pressing on
Improved visibility
Slightly more expensive than standard gas lenses
Fits most standard rubber-insulated torch bodies
Interchangeable strainer adapters