Elga Labwater Vent Filter Centra Hf Unit EA. The vent filter reduces the flow of air through the lungs while the filter paper allows the user to monitor the changes in the air. The flow is monitored by the color change in the water tank. The filter changes the color of the water to show changes in the absorbed dye. Used primarily for corrosive solution analysis color changes in elga rf spectrophotometry color differences in protein histograms color changes in blotting after color changes color differences between red and blue filters and color changes in ELGINARS II blotting vessels. Specifications for Elga Labwater Vent Filter Centra Hf LC173: Catalog number: 89204-416 Type: INST/EQUIP 0-499 Description: Hydrophobic Microporous Vent Filter - Centra HF Supplier No.: LC173 Package Contents: Elga Labwater Vent Filter Centra Hf LC173 / 89204-416 The Elga Labwater Vent Filter Centra Hf LC173 is a quality addition to the Elga Labwater lineup. For more great deals on Laboratory Apparatus by Elga Labwater please browse our Elga Labwater Laboratory Apparatus page. Elga Labwater Vent Filter Centra Hf LC173 Unit EA