If the item number for your gasket is not listed in the manual that came with your pressure cooker, or you no longer have the manual, then please locate the model number of your pressure cooker from the base.
Once you have either the item code or model number of the pressure cooker, then you can locate the part you need or view all of the parts available for your cooker by visiting Pressure Cooker Parts | Gaskets, Handles & Plugs | Prestige