Only All-American Pressure Cookers/Canner feature an exclusive precision machined metal-to-metal sealing system, Positive action clamping locks align the cover to the base forming a steam-tight seal, At the same time this metal-to-metal seal automatically permits venting under unusual pressure conditions providing an extra margin of safety over conventional rubber or composition gasket cookers, Crafted of the finest hand cast aluminum Stay-cool bakelite top handle Geared steam gauge Pressure regulator weight with settings of 5 psi 10 psi and 15 psi Smooth easy to clean satin finish Exclusive metal-to-metal seal - no gaskets to crack burn replace or clean Double thickness edges for additional protection on points of heaviest wear Automatic overpressure release 1 Jar Rack to stack two levels of jars inside canner, Not suitable for glass/flat top ranges and are for home use only, MADE IN USA Specifications: Liquid Capacity - 21 1/2 Quarts (19, 5 L) 19 Pint Jars 7 Quart Jars Inside diameter - 12 1/4 inches Overall Height - 15 3/8 inches SKU: WIS003