300HS - CK Worldwide 300HS Heatshield (18CG Style) - 2 Pack

Don't Let a Cracked Gasket Ruin Your Weld

Every TIG welder knows the frustration of chasing mystery porosity. You check your gas flow, you check your tungsten, you clean your material—but the bubbles remain. Often, the culprit is a small, overlooked part: the heatshield (or cup gasket). The CK 300HS is the high-quality replacement for the standard 18CG gasket found on almost all 17, 18, and 26 series torches. When these insulators get old, they become brittle and crack from the heat cycles, or they get crushed from overtightening the cup.

Once that seal is broken, your torch can suck in atmospheric air or leak argon before it ever reaches the weld pool. The CK 300HS is built tough to handle the heat and keep your gas system sealed tight. It acts as the vital barrier that insulates your electrically hot torch head from the nozzle, preventing arc-out and damage. Whether you are running a heavy-duty water-cooled rig or a standard air-cooled field torch, this insulator fits perfectly.

We sell these in a convenient 2-pack because we know that when one breaks, you need a backup immediately to keep working. Don't wait until your torch starts acting up; keep a couple of these CK Worldwide heatshields in your toolbox. They are compatible with all major brands of Series 3 torches, making them a universal fix for your daily welding needs.