3M High Temperature Flue Tape stops hot air leaks where they start – the seams of your heating ducts. The flue tape is heat resistant up to 600° F. Stops leaks from hot air ducts Heat resistant up to 600° F Helps reduce heating costs Measures 1.5 in x 5 yd Heat resistant to 600 degrees Fahrenheit 1.5 in. x 15 ft. roll
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