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High quality glass drain port with PTFE open/close valve for Ai 3L, 5L, 10L, 20L receiving flasks. Glass material: high borosilicate glass 3.3
Chapman Specific Gravity Flask determines percentage of surface moisture and voids in fine aggregates Upper and lower bulbs contain 175ml and 200ml Stem is graduated from 375—450ml
Ai 35/20 standard taper joint, heavy wall 1000mL round bottom receiving flask.