... stopcock 40 YS22002 20ml, 30atm/bar, with stopcock and Screw Type Hemostasis valve Set 40 YS22003 20ml, 30atm/bar, with stopcock ... , Screw Type sideon Tubing and Stopcock Hemostasis valve Set 40 YS22004 20ml ... , 30atm/bar, with stopcock and Push-pull Type Hemostasis valve Set 40 YS22005 20ml, 30atm/bar, with stopcock ...