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Column inline filters | Protect your columns | 2um or 0.5um.

Our technical team strongly recommends that you filter every sample before you inject them into your column with a syringe filter. However, even with pre-filtering, your samples could agglomerate or precipitate in the vial or pick up particles from your injector. Also, common shredding of pump seals can find its way into column frits and that can ruin your column. An essential and most economical way to protect your columns and guard columns is to use a disposable, Cogent Column Filter.

These low-cost pre-column filters are finger tight fittings with an installed SS frit that are easily hand tightened into the inlet nut of the HPLC column or guard column. The stainless steel frit inside this filter is available in 0.5um or 2um porosity. When you see back pressure rising, it’s time to replace the Cogent Column Filter with its trapped particles. One filter is included with each Cogent column purchase. Replacements are sold separately.

Click HERE for guard column holders.

The selection "FILTER" buttons below refine the products displayed in the ordering chart & image grid. They are described below and listed alphabetically by FILTER.

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