Inverted Transfer Cap: Compatible with 2/3/5L high efficient Erlenmeyer flasks. If required, liquid will be transferred under gravity from the inverted Erlenmeyer flask. It is pre-installed on the High Efficiency Erlenmeyer Flask,which realizes the closed transfer of liquid and reduces the risk of external contami-nation during the process of capping and screwing. Product Features Closed system reduces the risks of contamination during liquid transfer. One-piece construction of caps and connectors reduces the risk of leakage and media residue. Caps of various diameters are available and aseptic welding of liquid inlet tubing under normal conditions is supported. High-quality materials and smooth inner wall of the tubing provide an excellent transfer performance. Sterilized by E-beam, SAL=10^-6. Endotoxin-free, and no ingredients of animal origin. Individually packaged in sterile bag.