Maplefield Silicone Gaskets - 3-Pack Round Seals for Thermos King Food Jars, Leak-Proof Kit
$12.44
by Maplefield
Installation instructions: 1.) Using a long, thin implement (such as a thin, flathead screwdriver or a nail file), pry the old gasket out of the holding area (it should dislodge easily but may need to be worked out). 2.)