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What is the difference between the two types of O-rings offered by Duct Monkey?

April 26, 2017O-rings offered types

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What is the difference between the two types of O-rings offered by Duct Monkey?

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Black (or Nitrile) rubber is the standard and can be used in most applications. Red (Silicon) are ordered separately, used instead of the provided black rubber and are required for FDA-regulated applications. Red O-rings should also be used instead of the black in high temperature (below -40 degrees Fahrenheit or above 250 degrees F.) applications.