Sulphuration flask, 4000 ml, three standard ground joints, 1 unit(s)Sulphuration flask, 4000 ml, three standard ground joints Material: borosilicate glass 3. 3. Autoclavable: yes. With three side necks with ground glass joints. Technical Information Vol. 4000 ml Centre neck with ground glass joints 71 51 Side neck 1+2 with ground glass joints 29 32 Side neck 3 with ground glass joints 14 23