Patented VersaCap is leak-proof, has replaceable platinum-cured silicone gaskets, and provides the ultimate in top-connection flexibility. Open VersaCap is compatible with a variety of adapter inserts, enabling users to quickly change the top connections of each carboy or bottle to match their application needs. VersaCap offers large handles with finger grips that allow for easy tightening and opening. They are also stackable and are offered in 53mm, 83mm (compatible with most carboys), and 120mm wide-mouth versions that fit exclusively on Foxx Life Sciences 20L, 40L, and 75L EZfil carboys. Quick-connect hose barb options include quick-connect port combinations of two, three, and four, with 1/4" and 3/8" hose barb sizes, as well as molded-in hose barb options, available with 1/8", 1/4", 5/16", and 1/2" sizes. The Clearview adapter is also available for users who need a crystal-clear window into the carboy for visualizing solution homogenization. VersaCap are made from polypropylene, which may be autoclaved at 15 PSI and 121˚C (250˚F) for 20 minutes.