... stopcock 50 YS21002 25ml, 30atm/bar, with stopcock and Screw Type Hemostasis valve Set 50 YS21003 25ml, 30atm/bar, with stopcock ... , Screw Type sideon Tubing and Stopcock Hemostasis valve Set 50 YS21004 25ml ... , 30atm/bar, with stopcock and Push-pull Type Hemostasis valve Set 50 YS21005 25ml, 30atm/bar, with stopcock ...