FLASKS MEASURING – GUPTA BRAND 3001018 Posted on March 4, 2017May 1, 2017 by admin stoppered with one mark. Available in borosilicate glass also. Code Capacity (ml.) 3001018A 50 3001018B 100 3001018C 250 3001018D 500 3001018E 1000 3001018F 2000