Corning Falcon Round-Bottom Tubes Disposable Polystyrene 19 Ml Tubes. There tubes feature polyethylene snap-caps that have a unique two-position fit: loose for aerobic culturing tight for sealing. Additionally these Corning tubes are manufactured to be incredibly durable and long lasting. For a full selection of other Corning labware and lab tools from Corning Falcon Science & Technology and other brands we carry please visit our Corning lab tools page. For more brand name lab equipment accessories please visit our Lab tools store section. To see our complete line of products and other items from Corning Falcon Science and Technology visit our Corning Science and Technology page. Specifications for BD Falcon Round-Bottom Tubes Disposable Polystyrene BD Biosciences 352045 19 Ml Tubes : Size mm: 16 x 150 Sterile: Yes Cap Type: Screw Cap Packaging: Individually Wrapped BD No.: 352045 Unit: Case of 500 (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Corning products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Labware & Accessories with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for BD Labware & Accessories. 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 BD Falcon Round-Bottom Tubes Disposable Polystyrene BD Biosciences 19 Ml Tubes 352045/ 60819-433 we carry a full complement of Labware & Accessories as well as other product offerings from Corning. We also carry a full line of BD accessories to help meet your laboratory and scientific needs. For a complete selection of BD Labware & Accessories please visit our Corning page. For more brand name Labware & Accessories please visit our Labware & Accessories store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Corning Falcon Round-Bottom Tubes Disposable Polystyrene 352045 19 Ml Tubes