PYREX 30mm Diameter Medium Porosity Fritted Disc Immersion Tube These PYREX immersion tubes have a 30mm diameter medium porosity (10 to 15um) fritted disc and are particularly useful for drawing off the supernatant liquid from a precipitate. Any precipitate which might be disturbed will be held on the filter. Solid chemicals, made in a beaker or flask, can be filtered and washed without being transferred. For more information on fritted products, please check the Guide to Selecting and Using Fritted Glassware under Technical Literature.
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