Pyrex Cup Kit, Large Diameter

$58.44 ~~$94.25~~ In stock

USAWeld® Large Diameter Pyrex Cup Kit for 9 Series air-cooled and 20 Series water-cooled TIG welding torches. This kit is designed to provide a reliable and durable cup solution for your TIG welding needs.

Compatible with 9 Series air-cooled and 20 Series water-cooled TIG torches.
Available in multiple sizes to fit your electrode diameter: .040", 1/16", 3/32", and 1/8".
Made from Pyrex glass for high-temperature resistance and clear visibility of the arc.
Large diameter design helps improve gas coverage and access in tight spots.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Stella ★★★★★ Oct 22, 2026

I was a bit skeptical about the diameter, but once I swapped my old cup for this Pyrex kit, the gas coverage on heavy aluminum was noticeably more consistent. The 9 series fit perfectly, and it’s held up to a few dozen welds without any cracking.

Charlotte ★★★★★ Oct 21, 2026

The large diameter cup fits my 20 series torch perfectly, and the snug seal makes gas flow feel more consistent than my old setup. I’ve been using it for a few weeks now with no signs of wear—definitely a durable upgrade for TIG welding.

Victoria E. ★★★★★ Oct 19, 2026

The thicker walls on this large diameter cup handle the heat from my 20 Series torch without warping. It fits securely and makes swapping between setups quick and easy. Really glad I went with this upgrade for my welding station.