VWR PTFE Tissue Grinders Plain Plungers. The tissue grinder has a borosilicate glass vessel with a constant fluid level. The tissue grinder is inert and non-contaminating with a standard clearance of 0.150.25mm. This one is just for PTFE tissue grinders but it can also be used for other applications involving super hard materials. Its unfortunate that most grinders are not PTFE but that isn't a big deal because most of the PTFE used in medical devices is for prosthetics such as pacemakers and pacemakers pads. We have also seen some unusual things with PTFE tissue grinders such as etching or scratches on agar plates but these problems have been resolved with modern PTFE such as medical devices. Specifications for VWR PTFE Tissue Grinders 11.215 Plain Plungers : Volume mL: 15 Height mm: 270 Diameter mm: (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Cowie products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Laboratory Apparatus with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for VWR Laboratory Apparatus. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the VWR PTFE Tissue Grinders Plain Plungers 11.215/ 89026-396 we carry a full complement of Laboratory Apparatus as well as other product offerings from Cowie. We also carry a full line of VWR accessories to help meet your laboratory and scientific needs. For a complete selection of VWR Laboratory Apparatus please visit our Cowie page. For more brand name Laboratory Apparatus please visit our Laboratory Apparatus store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. VWR PTFE Tissue Grinders 11.215 Plain Plungers