Secure Seal Tester “is used to test seal integrity on the glass or plastic   containers and cans. The CanNeed-SST-300 has been designed to address the special needs of sealing cans and bottles that use aluminum roll-on, twist crowns, or plastic caps. The CanNeed-SST-300 operates with compressed air, nitrogen, or carbon dioxide. By detecting gas leakage, rather than liquid, the Secure Seal Tester gives more sensitive, accurate readings.

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