Column Frits

PerfectPeak® porous chromatography frits are used in HPLC columns to retain the packing media and provide a uniform flow of sample through the column with low hold-up volume. These frits withstand high pressures and highly corrosive chemicals. Bio-inert options are also available.

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Literature & Data Sheets

PerfectPeak® Column Frits

PerfectPeak® Filter and Column Frits offer a wide variety of options and additional benefits to produce the most optimal results in your system.

Porous Metal Overview

Check out the features and benefits of Mott sintered porous metal media that delivers uniform porosity for superb filtration efficiency and structural integrity.

Frits in Liquid Chromatography

Mott’s pressed and sintered porous metal frits are used in liquid chromatography columns to filter microbial and inorganic contaminants.

Product Specs

  • Unidense – Uniform flow across the entire column
  • Dual Density – Limit flow to the interior region of the frit and reduce dead volume
  • Concave – Enhance flow uniformity without the need for a flow distribution plate
  • Diameter – Standard disc diameters available from 0.062” to 0.750”
  • Thickness – Standard thicknesses of 0.028” and 0.062”


Pore Size
• 0.2, 0.5, and 2 µm – Standard option for HPLC/UHPLC filtration
• 2, 5, 10, and 20 µm – Standard options for semi-prep filtration


• 316L SS – Standard HPLC/UHPLC applications
• Titanium – Bio-inert applications
• Hastelloy® – Bio-inert applications with corrosive solvents


Sealing Material
• Metal – Robust sealing surface that can withstand harsh environments
• PEEK – For most bio-inert applications requiring standard sealing
• PTFE – Economical solution for frits requiring the most bio-inert of materials


Assembly Method
• Press Fitting – Standard assembly method for all frits
• Sinter Bonding – For ultimate durability (only available for metal sealing materials)


Our Design Capabilities

Mott can also design and manufacture 3D printed metal frits with tight pore size distribution down to 2 µm nominal pore size and solid-to-porous metal printing to eliminate press fit sealing rings.

Relevant Services

Engineering Support – Utilize our expert engineers to consult your process and design the right frit for your column specifications.