Includes: two Fupa 12 Pyrex cups, three diffusers and four O-rings.
The Fupa 12 models are constructed with the identical original diffuser as the Jazzy cups but in larger packages. Fupa 12 cups are recommended for Mild Steel, Stainless Steel, Chromoly, Titanium, Inconel and other space grade applications. These cups will work best on thinner applications such as header tubes and chassis tubing. The Fupa No.12 brand of Pyrex cups is of DC polarity and has an amperage rating of 175.