Idex Precolumn MicroFilters

Precolumn MicroFilters


  • Direct connects to columns with 10-32 threads
  • Total void volume of 0.5 μL
  • Two versions: direct connect 1/16” OD tubing or use MicroTight tubing sleeves for 70 – 520 μm OD capillary tubing


The Precolumn MicroFilters directly connect into your microbore or analytical column. Total theoretical void volume is only 0.5 μL (includes frit volume) and the PEEK tubing used in the assembly of these units has a 0.005” (125 μm) ID, virtually eliminating any mixing of the sample with the mobile phase.




  • The Mini MicroFilter and Inline MicroFilter can be used to pack capillary tubing. Simply place one of these filters on the effluent side of the capillary tubing, then slurry pack. Once packed, place a filter at the head of the tubing. This creates a reliable capillary column without fusing the silica to make frits or pressing filter paper inside the capillary tubing.


Serial Number



Precolumn MicroFilter Assembly 0.5µm 5 Frits


Precolumn MicroFilter Assembly


Precolumn MicroFilter 0.5µm SST 5 Stainless Steel Frits


Precolumn MicroFilter, 2µm for 1/16" OD


Precolumn MicroFilter 0.5µm PEEK, for 1/16" OD 5 PEEK Frits


Precolumn MicroFilter 0.5µm PEEK, for 1/16" OD 1 PEEK Frit