I purchased a package of the foam tape from JB Prince when I purchased my immersion circulator. The tape added so little to the order ($6) it was an easy addition. I have not tried to use the foam tape yet. (So little time so many things to cook and experiment with.) The foam tape JB Prince sells appears to be a product they repackage from bulk rolls into a small coil in plastic bag. There is no manufacturer marking on the bag or the tape. It appears to be identical to the weather stripping available locally. (I have not tried to use the weather stripping for sous vide either.)
