Leader Evaporator is the largest manufacturer of maple sugaring equipment in the United States, and all of our evaporator pans are 100 percent Made in the US. What is more, all Leader pans are made from 100-percent stainless steel, including fittings and any internal plumbing. These pans are tig welded from 20 ga stainless steel, making them the most durable pans on the market. All of the different styles of pans we make feature full seam welding of all compartments to eliminate unwanted mixing.