Gardeningsis-does your older canner have a model # on it? See, mine doesn't and thats why I am having such a hard time finding a lid gasket. Also, my cooker has the domed lid so I can either cook in it or can 4 pints with it--its a 4 qt. Thats why I hate to part with it after all these years!!! I also have a newew model with the domed lid like that but it is a 6 qt.