VWR High-Performance Centrifuge Tubes with Flat or Plug Caps Polypropylene Sterile Conical-Bottom Centrifuge Tubes 15 Ml Tubes With Plug. Combining top-notch and uncompromising quality with an affordable price the VWR High-Performance Centrifuge Tubes with Flat or Plug Caps Polypropylene Sterile Conical-Bottom Centrifuge Tubes 15 Ml Tubes With Plug Caps 3137-345-306/ 89039-668 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Clear Polypropylene Construction Easy-to-Read Black Printed Graduations Available in Reusable Freezable Autoclavable Racks RNase- DNase- and Endotoxin-Free FDA CFR 21 Compliant Validated ISO 11137 Sterile Process These disposable conical-bottom and freestanding tubes feature black printed graduations and smooth inner walls for easy filling and sample preparation. A white printed writing area on the side allows for permanent coding. Rack-packed tubes are packaged in freezable recyclable autoclavable racks. The interlocking design of each polypropylene rack make them ideal for benchtop organization. Tubes are sterilized by gamma irradiation. Tubes and caps are autoclavable and freezable. Caps are available in two styles: flat with a smooth surface for additional labeling options and plug style for a secure seal when using shakers and horizontal incubators. All caps are made of purple high-density polyethylene. Racks are available separately. Ordering Information: Assorted color rack cases (89079-530 and -512) include one blue green orange red and yellow rack per case. Specifications for VWR High-Performance Centrifuge Tubes with Flat or Plug Caps Polypropylene Sterile 3137-345-306 Conical-Bottom Centrifuge Tubes 15 Ml Tubes With Plug Caps: Description: 15 mL Tubes with Plug Caps Packaging: 50/Bag Maximum RCF: 12500 g Operating Temperature Range: 0 to 40 C (32 to 104 F) Storage Temperature Range: 80 to 40 C ( 112 to 104 F) (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Labcon 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 VWR 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 VWR High-Performance Centrifuge Tubes with Flat or Plug Caps Polypropylene Sterile Conical-Bottom Centrifuge Tubes 15 Ml Tubes With Plug Caps 3137-345-306/ 89039-668 we carry a full complement of Centrifuges as well as other product offerings from Labcon. We also carry a full line of VWR accessories to help meet your laboratory and scientific needs. For a complete selection of VWR Centrifuges please visit our Labcon 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. VWR High-Performance Centrifuge Tubes with Flat or Plug Caps Polypropylene Sterile 3137-345-306 Conical-Bottom Centrifuge Tubes 15 Ml Tubes With Plug Caps