VWR Screw-Cap Microcentrifuge Tubes Standard Screw Caps Pack of 500. Combining top-notch and uncompromising quality with an affordable price the VWR Screw-Cap Microcentrifuge Tubes Standard Screw Caps 3603-874-300/ 89004-354 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Standard conical-bottom microcentrifuge tubes have a long-lasting polyethylene (PE) cap with a standard-cap screw closure. Each tube is molded of a consistent number of both standard-cap and special-cap screws that resist punch-down force and temperature extremes. Polypropylene tubes can be centrifuged with the caps oriented to the inside of the tube. Before centrifugation verify that the lid is in place and that the O-ring is sealing. If not close the lid and proceed with the centrifugation. The polyethylene screw caps are fitted with an internal wax pattern for reliable adhesion to the tube; no disassembly of the cap is required. The caps are easily removed for cleaning. Specifications for VWR Screw-Cap Microcentrifuge Tubes 3603-874-300 Standard Screw Caps : Volume mL: - Style: Red Sterility: - 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 Screw-Cap Microcentrifuge Tubes Standard Screw Caps 3603-874-300/ 89004-354 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 Screw-Cap Microcentrifuge Tubes 3603-874-300 Standard Screw Caps Pack of 500