4-neck flask, 500 ml, with 4 baffles, mn size 29, sn 2x size 29, 1x size 14,5,

(7°), run-off valve 0 - 10 mm
4-neck flask, 500 ml, with 4 baffles, middle neck size 29/32, 2x side necks size 29/32, 1x side neck size 14,5/23, side necks at 7° angle to body and run-off valve 0 - 10 mm, borosilicate glass 3.3