KONTES* Potter-Elvehjem Tissue Grinder with PTFE Pestle
Features PTFE pestle and an unground tube. Sizes 21 to 24 have radial serrations on the lower portion of the pestle to deliver the homogenate into the cylindrical portion of the tube. Clearance between pestles and tubes is 0.004 to 0.006 in. total.
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.