All American 921 21-1/2-Quart Pressure Cooker/Canner for $161.49 shipped.  Here is a screenshot for reference.  Alternatively, it is available at Overstock.com for $161.49 shipped.  Its automatic release prevents pressure from building too high, and the metal-to-metal sealing system allows strong seals without gaskets.  Most places have it for about $231.