U.L. Approved Made in the U.S.A. 15 ½ Quart liquid capacity Shipping weight 20 lbs. Heavy Cast Aluminum Cover & Bottom Aluminum Alloy Seamless Inset Container Aluminum Rack Flexible Metal Exhaust Tube. Dial Gauge and Control Valve Metal-to-Metal Seal (no rubber gaskets) Large Sterilizing Capacity Complete & Effective Sterilization at the Lowest Possible Cost Destroys All Micro-organisms & Bacteria A Quality Unit at a Very Affordable Price!