Perkin Elmer, N9305620, Elite-5ms Capillary Column with 10 m Integra-Guard - 30 m x 0.25 mm I.D. x 0.25 μm

Integrated Guard columns: guard columns WITHOUT connections – protecting your analytical GC column has never been this easy! For analysts who find it inconvenient to make a leak-free connection between the guard column and the analytical column, we offer Integrated Guard columns. These innovative columns incorporate both guard column and analytical column in a continuous length of tubing, eliminating the connection and all connection-associated problems! The guard column section is marked separately from the analytical column, using high-temperature string. A GC column with an integrated Guard column is so economical that we challenge you to compare our price against that of a GC column and guard with a conventional connection, even if you assemble it yourself.
Features and Benefits:
No leaks for a more robust method.
No column connections for easier, faster maintenance.
No peak distortions due to connector dead volume and thermal capacity.