Reddit reviews Presto 09907 Pressure Canner Sealing Ring/Automatic Air Vent Pack,Black
We found 2 Reddit comments about Presto 09907 Pressure Canner Sealing Ring/Automatic Air Vent Pack,Black. Here are the top ones, ranked by their Reddit score.
Presto 09907 Pressure Cooker Sealing RingPressure canner sealing ringIncludes overpressure plugFits Presto Pressure Canner models: 01/CA16A, 01/CA16H, 01/CA21A, 01/CA21H, 21, 21AV, 21B, 21S, 7, 7AV, 7B, 7S, CA16, CA16H, CA21, CA21HThe product is from ChinaIncludes Automatic Air Vent.Replaces Presto part 1075.Automatic Air Vent replaces parts 393 & 82058
THIS looks like the gasket and overpressure plug for yours.
>Fits Presto Pressure Canner models: 01/CA16A, 01/CA16H, 01/CA21A, 01/CA21H, 21, 21AV, 21B, 21S, 7, 7AV, 7B, 7S, CA16, CA16H, CA21, CA21H
However, I've seen photos where a 21b doesn't have a plug, it has some sort of other contraption that I'm sure involves a spring. I don't know which one you have.
There's a nice write-up on refurbing a 21b here: http://cookingwithjim.com/presto-21-b-canner-refurbishment/
The sealing ring and other parts are still available for that canner, the sealing ring is only $9 at that site, it's also available at Amazon. I'd try a new sealing ring before shelling out the bug bucks for a whole new canner. :)