With better shielding gas coverage patterns the tungsten can be extend the up to 6 x the diameter of the tungsten beyond the edge of the gas cup.
Push on pyrex glass cups are used in applications where visibility is an issue such as inside corners, inside pipe or around tubing, etc.
Reduced inventory and less expensive replacement parts compared to standard gas lenses or collet bodies.
The gas saver kits will retrofit to all WP17, 18 and 26 type torches using a replaceable white teflon heat shield on a silicon rubber torch body.