Poly Foam Pressure Seals
Model #: 424, 426, 423, 427, 428, 429
Use these seals to comply with Federal Regulations when your jars need to be sealed prior to selling. Imprinted with "Sealed For Your Protection", these white labels are 0.22 mm thick. Torque activated, they work on glass and plastic. Allow 20 minutes to seal after capping.