Well you have two basic designs....one with a gasket, and one without.
The gasket type are the ones you find at Bi Mart, etc. for under 100.
The non-gasket type includes brands such as All American. I have one of these:
http://www.pressurecooker-outlet.com/921.htm
....the lid has a metal to metal bevel seal.
There are plenty of folks who will say that the cheaper, gasket types do just fine & never have a problem. This might be true for most folks. But when you hear someone tell a story about what happens when a gasket fails....you will think twice about not spending a little more money on a non-gasket type.
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