Intermediate-polarity deactivated deactivated guard columns are recommended for intermediate polarity analytical columns. Suitable for a wide variety of applications including purge and trap, headspace, and mass spectrometers. Tested with a comprehensive test mix to ensure high inertness, and is compatible with most common solvents. Maximum temperature: 325C. NOTE: Use caution during installation since cutting the high-temperature string from the tubing will cause the tubing to unravel.