Dwk Life Sciences Kimble Kimble Potter-Elvehjem Tissue Grinders with PTFE and Grad Glass - Potter-Elvehjem Tissue Grinder, PTFE and Graduated Glass, Size 21 - 885510-0021

A graduated tube and a finely machined PTFE pestle comprise this popular style·Radial serrations on the lower portion of the pestle deliver the homogenate into the cylindrical portion of the tube·Graduations are fused into the glass·Replacement components are available and completely interchangeable·4 mL tubes have a clearance of 0.003-0.005" between pestles and tubes·10 mL tubes have a clearance of 0.004-0.006" between pestles and tubes·30 mL tubes have a clearance of 0.005-0.007" between pestles and tubes·55 mL tubes have a clearance of 0.006-0.009" between pestles and tubes·Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

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