Heavy-Duty Aluminum Construction: Commercial design pressure cookers from Universal let you prepare all types of food in less time. Its external seal with multiple safety devices prevent your device from raising the pressure above 5.8 PSI / 40 KPa. Aluminum Pressure Canners: Increase your cooking capacity up to 15.8 qt /15 L with this pressure cooker is ideal for cooking your while maintaining the most nutrients in meats, soups, beans and more. Secure Sealing System for Larger Model: 15.8 qt pressure cooker accessories includes a pair of reinforced burn-resistant handles, a safety lid with knob adjustment, a safety valve, a pressure regulating valve, and one additional silicone gasket. Increased Capacity for Higher Demands: Its superior strength and capacity make Universal's pressure cooker for canning the perfect choice for your business. You can use it to prepare beans, sauces, meat and more meals in restaurants, or parties.