Nalge Nunc Cent Closure Tube Pp 17MM 20CS. The distinctive ultra-smooth surface helps prevent sample evaporation during centrifugation and withstands boiling temperatures. The unique brush-lined plug seal provides a leakproof connection and prevents contamination of samples. Tubes feature a write-on identification code on the base of the tube allowing easy laboratory identification of the contents. Count on this tube for applications requiring a high volume centrifuge such as a lyophilizer or a freeze dryer. The wide base distributes the force of the centrifuge down through the whole batch rather than just the tip. The unique flat bottom of the tube allows a rack or small support plate to be placed on the outside of the tube. This feature also permits a lid to be placed on the outside of the tube without contaminating the seal. Specifications for Nalge Nunc Cent Closure Tube Pp 17MM 20CS DS3111-0017 : Description: CENT CLOSURE TUBE PP 17MM 20CS (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Nalge Nunc products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Centrifuges with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Nalge Nunc Centrifuges. 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 Nalge Nunc Cent Closure Tube Pp 17MM 20CS DS3111-0017/ 21010-894 we carry a full complement of Centrifuges as well as other product offerings from Nalge Nunc. We also carry a full line of Nalge Nunc accessories to help meet your laboratory and scientific needs. For a complete selection of Nalge Nunc Centrifuges please visit our Nalge Nunc page. For more brand name Centrifuges please visit our Centrifuges store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Nalge Nunc Cent Closure Tube Pp 17MM 20CS DS3111-0017