CK Worldwide #18 Pyrex Cup for Large Diameter Gas Saver

See What You've Been Missing

Stop guessing where your tungsten is and start seeing the puddle with crystal clarity. The CK Worldwide 4P18GSLD is a game-changer for TIG welders who demand perfection. This isn't just a cup; it's a window into your weld. Made from high-quality Pyrex glass, this nozzle lets you look right through the cup wall, giving you an unobstructed view of the arc and the puddle, even when you are jammed into a tight corner, welding inside a pipe, or maneuvering around a roll cage gusset. If you have ever struggled to see your electrode placement because a pink ceramic cup was blocking your view, this is the solution.

Beyond visibility, the 4P18GSLD is a beast when it comes to gas coverage. With a massive #18 orifice (that's 1-1/8 inches wide!), it floods the weld zone with a soft, laminar blanket of argon. This is the secret weapon for welding stainless steel and keeping it colorful, or welding titanium and keeping it silver. The large diameter allows you to extend your tungsten stick-out further than usual—sometimes up to an inch or more—without losing shielding gas coverage. This capability is invaluable when you need to reach deep into a crevice without dipping your tungsten.

This cup is designed to push onto the O-rings of your CK Large Diameter Gas Saver kit. It fits 3 Series torches (like the WP-17, WP-26, and WP-18) and 4 Series stubby setups. While glass cups are fantastic for freehand welding, keep in mind that they are more fragile than ceramic. We generally recommend not "walking the cup" on the glass itself to prevent chipping. Treat it with care, and it will reward you with the best view you've ever had under the hood.

Perfect for Precision Fabrication

Whether you are building custom headers, sanitary food-grade piping, or aerospace components, the 4P18GSLD gives you the control you need. The ability to monitor the puddle from any angle means fewer mistakes, fewer dips, and higher quality welds. Upgrade your torch with this Pyrex cup and experience the difference that total visibility makes.