Annular DenudersPrint

Glass Denuders

The glass annular denuder features multiple channels to provide more surface area to expand the capacity of the denuder combined with etched glass surfaces to provide maximum area for coating and collection. The denuder is available as one or multi-channel in any length for custom sampling.

Glass Denuder


  • One Channel or Multi Channels Available
  • 1mm Annular Spacing
  • #30 Thread on Both Ends to Allow Direct Connection to Cyclones, Filter Holders and Other URG Components
  • Teflon© Coated Flow Straightener on One End


  • Available in any Length for Custom Sampling
  • Glass Surfaces are Etched to Provide Increased Area for Coating and Collection
  • Multi Channels Provide More Surface Area to Expand the Capacity of the Denuder
  • Flow Straightener to Prevent Particle Collection in Annular Denuder
  • Provided with Protective End Caps for Use While Coating and Extracting

Ordering Information

  • URG-2000-30B-242: 1 Channel, 242mm Length (shown)
  • URG-2000-30B4-150: 4 Channel, 150mm Length
  • URG-2000-30B4-242: 4 Channel, 242mm Length
  • URG-2000-30B5-242: 5 Channel, 242mm Length
  • URG-2000-30B5-400: 5 Channel, 400mm Length

*Length of All Glass Annular Denuders Can Be Customized per Customer Specifications