From the product description, check product page for current description, price and availability:

• Aluminum
• Imported
• The only method recommended safe by the US Department of Agriculture for canning vegetables, meats, poultry, and seafood
• Doubles as a boiling-water canner for preserving fruits, jams, jellies, pickles, and salsa; Handy as a large capacity pressure cooker
• Constructed of warp-resistant heavy-gauge aluminum for fast, even heating; Works on regular and smooth-top ranges; Extended 12-year limited warranty
• Deluxe pressure dial gauge registers the complete range of processing pressures; This precise measurement is especially important at higher altitudes
• Extra-large size is great for big canning jobs; Includes canning/cooking rack and complete 76-page instruction and recipe book

From HBF: Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.