I have a pair of 2452H with shifted gaskets: a part of the mouth is covered by the gasket, as well as the screw holes (which is of course less of a problem).
I would like to reset it or even replace it (is there a part number?), but it looks like I cannot unstick it without damage (I tried to use an hair dryer, but the core is very efficient absorbing the heat...). I also have no idea on how the mesh is fixed under the gasket...
Any advice?