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Proprietary Membranes | Ultra High Quality | Range of Membrane Types

These Advanced Quality brand (AQ™), pre-cut, 25mm & 47mm membrane discs are specifically manufactured from the highest quality materials for HPLC mobile phase filtration and will not add any chemical extractables as you remove particles from your mobile phase which occurs with other brands.

Preferred over others brands due to their market leading lowest extractable level. Chosen with solvent filtration for LCMS mobile phases.

Available in hydrophilic nylon or hydrophobic PTFE. Other diameters are available upon request. Use 0.22µm membranes for UHPLC Reversed Phase mobile phases.

The Selection "FILTER" buttons refine the Products displayed in the Ordering Chart. They are described below and listed alphabetically by FILTER.

  • 25mm Discs - Cut to 25mm diameter.

  • 47mm Discs - Cut to 47mm diameter. Our Most Popular.

  • Nylon Filters - Made with the same high quality nylon membranes as the AQ™ syringe filers.

  • Pore Size: 0.22um or 0.45um or 1.5um

  • PTFE Filters - Teflon membranes for use with non aqueous solvents.

  • PVDF Filters - Membranes that will not adsorb most proteins.

  • Regenerated Cellulose Filters - Used mostly when extremely low extractables are desired.

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