Two-neck round bottom flask 25 ml
oblique SH, 2 NS 14/23

Round bottom flask 5 ml, NS 14/23, DURAN®

Kjeldahl flask 50 ml
with NS 19/26

Two-neck round bottom flask 50 ml
MH NS 14/23, SH NS 14/23 slanted
Borosilicate glass 3.3

Three-neck round bottom flask 100ml
MH NS 24/29, SH NS 19/26
parallel

Three-neck round bottom flask 250 ml
MH NS 29/32, SH 2x NS 14/23 diagonally
Borosilicate glass 3.3

Round bottom flask 100 ml, brown glass
NS 29/32, Boro 3.3,
DIN 12394

Nitrogen round bottom flasks (Schlenk flasks)
25 ml, NS 14/23, with NS stopcock

Pointed flask 10ml, NS 14/23, DURAN®

Nitrogen flask 50ml
NS 14/23, borosilicate glass 3.3

Erlenmeyer flask 100 ml, brown glass
NS 29/32, borosilicate glass 3.3

Pointed flask 10 ml
NS 14/23, Boro 3.3

Round bottom flask 5 ml, NS 14/23, DURAN®
VE=10

Round bottom flask 50 ml, NS 14/23
Boro 3.3, without plug

Round bottom flask 50 ml, with NS 29/32
Brown glass

Three-neck round bottom flask 50ml
MH NS 19/26 + 2 inclined SH NS 14/23

Nitrogen template (Schlenkrohre)
10 ml, sleeve, NS 14/23,
NS tap bore 2.5 mm

Floor flask 50 ml, NS 19/26
Boro 3.3, without plug

Floor flask 50 ml, NS 29/32

Nitrogen template (Schlenkrohre)
250 ml, core, NS 14/23
NS tap bore 2.5 mm