Same as above but with screw type rota flow stopcock.

Cat. No.          Capacity (ml)       Stopper Size

9042(a)                  100                     19/20

9042(b)                  250                    19/20

9042(c)                  500                    24/25

9042(d)                  1000                  29/25

9042(e)                  2000                  29/25