VWR SuperClear Screw Cap Microcentrifuge Tubes Sterile Tubes With Attached Natural-Color Caps Pack of 500. Combining top-notch and uncompromising quality with an affordable price the VWR SuperClear Screw Cap Microcentrifuge Tubes Sterile Tubes With Attached Natural-Color Caps 3641-875-000/ 16466-050 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Ultra-Clear Resin Large External Graduations Packaged in Resealable Bags RNase- DNase- and Endotoxin-Free FDA CFR 21 compliant These tubes are made from an ultra-clear resin that allows you to easily view the contents. They feature universal screw threads for use with most popular brand screw caps. Low-profile caps include an ethylene propylene O-ring ensuring a secure seal. Tubes also feature large external graduations and a smooth surface for applying labels. Tubes fit most common rotors. Tubes and caps are autoclavable at 122 C and freezable to -90 C. Sterile tubes are radiation sterilized. Certificate available to verify lot-by-lot testing. Ordering Information: Sterile tubes with attached caps are packaged 50 tubes per bag; all other products are packaged 500 per bag. Assorted pack of caps (16466-084) contains equal quantities of red orange yellow blue green and white caps. Specifications for VWR SuperClear Screw Cap Microcentrifuge Tubes 3641-875-000 Sterile Tubes With Attached Natural-Color Caps : Volume: 0.5 mL Tube Style: Freestanding Maximum RCF: 20000 g (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 SuperClear Screw Cap Microcentrifuge Tubes Sterile Tubes With Attached Natural-Color Caps 3641-875-000/ 16466-050 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 SuperClear Screw Cap Microcentrifuge Tubes 3641-875-000 Sterile Tubes With Attached Natural-Color Caps Pack of 500