4-neck flask, 1000 ml, temp.-jacket, mn size 29, sn 2x size 29, 1x size 14,5

(7°), bottom run-off valve 0 - 10 mm
4-neck flask, 1000 ml, with tempering jacket, middle neck size 29/32, 2x side neck size 29/32, 1x side neck size 14,5/23, side necks at 7° angle to body, bottom run-off valve 0 - 10 mm, borosilicate glass 3.3