Vevor Maple Syrup Evaporator Pan 24.9 Gal Capacity Stainless Steel with Valve NewThe Vevor maple syrup evaporator pan is made of 0. 06" thick 304 stainless steel for durability, rust resistance, and efficient heat transfer. Its TIG full welded design prevents leaks and ensures safe use, while the adjustable valve allows easy syrup transfer. Compatible with wood, charcoal, or propane heat sources, it processes up to 24. 9 gallons of sap per batch, making it ideal for producing large quantities of maple syrup indoors or outdoors.