Labconco LYPH-LOCK Flask Bottom 50ML. The open funneled end fits into a wide mouth opening accepts a cotton plug and functions as a conventional stopper. The fixed center design requires no dispensing funnel and locks the bottom securely in place. The ring adapter supplied with this item is an example of good manufacturing and provides a strong and effective product. The flared end provides a strong fixed jaw on a flask and supports flexible necks. The snap-in ring adapter provides a strong and flexible joint for leakproof performance. Specifications for Labconco LYPH-LOCK Flask Bottom 50ML 7557200 : Description: LYPH-LOCK FLASK BOTTOM 50ML (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Labconco products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Beakers Test Tubes Flasks & Accessories with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Labconco Beakers Test Tubes Flasks & 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 Labconco LYPH-LOCK Flask Bottom 50ML 7557200/ 26674-536 we carry a full complement of Beakers Test Tubes Flasks & Accessories as well as other product offerings from Labconco. We also carry a full line of Labconco accessories to help meet your laboratory and scientific needs. For a complete selection of Labconco Beakers Test Tubes Flasks & Accessories please visit our Labconco page. For more brand name Beakers Test Tubes Flasks & Accessories please visit our Beakers Test Tubes Flasks & Accessories store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Labconco LYPH-LOCK Flask Bottom 50ML 7557200