This Guard Column Holder accepts Cogent RP, Cogent NP or Cogent IEX Prep Guard Columns (Cartridges) that are 21.2mm in Internal Diameter and are 10mm Long which are sold separately.
Stainless Steel Body and Frits, this Guard System is a great way to keep your 21.2mm Prep Columns (all lengths) from being contaminated by your samples or impurities that might adsorb onto the Prep Column and keep out some of the undissolved particles.
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