Catalog

Stoppers

8 products found All Categories

Glass Stopper - Clear - Hollow - Hexagonal Form, with Ground Joint

  • Made from high-quality borosilicate glass in accordance with DIN 12252 standards.
  • Provides excellent chemical and high temperature resistance.
  • The flat hexagonal design prevents the stopper from rolling and allows it to stand upright, keeping the contact surface clean.
  • Easy to clean and rotate; side grooves prevent slipping and offer a secure grip.
  • Hollow-blown structure helps reduce weight.
  • Ground joint ensures a completely leak-proof fit with all compatible bottles.
BORO 3.3
Product Code
Joint N/S
B11141.010C
10/19
B11141.012D
12/21
B11141.014F
14/23
B11141.019G
19/26
B11141.024H
24/29
B11141.029J
29/32
B11141.034K
34/35
Autoclave
Chemical Resistant
Heat Resistant
Joint
Leak-proof
View Details

PP Stopper - Hollow - Hexagonal Form

  • Manufactured from high-quality polypropylene in accordance with DIN 12254 standards.
  • An excellent alternative to glass stoppers for bottles, flasks, and similar vessels.
  • The flat hexagonal design prevents the stopper from rolling and allows it to stand upright, keeping the surface clean.
  • Easy to clean and rotate, with side grooves that prevent slipping and provide a secure grip.
  • Features a hollow-blown structure to reduce weight.
  • The ground joint ensures a completely leak-proof combination with all compatible bottles.
PP
Product Code
Joint N/S
P45141.010C
10/19
P45141.012D
12/21
P45141.014F
14/23
P45141.019G
19/26
P45141.024H
24/29
P45141.029J
29/32
Autoclave
Joint
Leak-proof
View Details

PP Stopper - For 12mm/16mm Test Tubes - Flange Type, Red

  • Made of high-quality polypropylene.
  • Provides excellent chemical and heat resistance.
  • Bright red color enables easy identification and organization of samples.
  • Easy to remove and replace, facilitating frequent use in laboratory environments.
  • Ensures reliable protection for storage and transport of samples.
PP
Product Code
Compatible Tube Diameter mm
P26140.212
12
P26140.216
16
Joint
View Details

Silicone Stopper

  • Made from high-quality natural silicone according to DIN 12871 standards.
  • Especially preferred due to their inert and non-reactive structure.
  • Resistant to most chemical acids and solvents.
  • Silicone stoppers can be steam sterilized at 15 lbs. pressure.
  • Operating temperature range: -60°C to 170°C, with a hardness of ~50°.
  • Provides reliable protection for the storage and transportation of samples.
Rubber and silicone
Product Code
Height mm
Joint N/S
Base Diameter mm
Top Diameter mm
N13144.035
15
—
3.5
6.5
N13144.050
20
7/16
5
9
N13144.080
20
10/19
8
12
N13144.105
20
12/21
10.5
14.5
N13144.125
20
14/23
12.5
16.5
N13144.140
20
—
14
18
N13144.170
25
19/26
17
22
N13144.180
30
—
18
24
N13144.210
30
24/29
21
27
N13144.230
30
—
23
29
N13144.260
30
29/32
26
32
N13144.290
30
—
29
35
N13144.310
35
34/35
31
38
N13144.360
40
—
36
44
N13144.410
40
45/40
41
49
N13144.470
40
—
47
55
N13144.505
45
—
50.5
59.5
N13144.560
45
—
56
65
N13144.600
50
—
60
70
N13144.645
55
—
64.5
75.5
N13144.710
60
—
71
83
N13144.790
65
—
79
92
Chemical Resistant
From -60°C
Heat Resistant
Stopper
View Details

Rubber Stopper

  • Manufactured from high-quality natural rubber in accordance with DIN 12871 standards.
  • Ideal for use with non-aggressive or diluted solutions.
  • Operating temperature range: -25°C to 70°C with a hardness of ~40°.
  • Each stopper size is marked with embossed digits.
  • Provides secure protection during sample storage and transportation.
Rubber and silicone
Product Code
Height mm
Joint N/S
No
Base Diameter mm
Top Diameter mm
K43146.100A
16
7/16
000
9
6
K43146.108B
20
10/15
00
10.5
8
K43146.000C
15.5
10/19
0
13
9
K43146.001D
18.5
12/21
1
14
11
K43146.002F
20
14/23
2
16.5
13
K43146.003
21
—
3
19
14
K43146.004G
22
19/26
4
21
15
K43146.005
23
—
5
22.5
17.5
K43146.006
24
—
6
24.5
20
K43146.007H
27.5
24/29
7
26
20
K43146.008
27.5
—
8
26.5
21
K43146.009
31
—
9
28
21.5
K43146.010J
33
29/32
10
30
26
K43146.011
32
—
11
33
29
K43146.012
34.5
—
12
34.5
30
K43146.013K
37
34/35
13
38.5
31
K43146.014
45.5
—
14
41.5
32
K43146.015L
40.5
40/38
15
42
38
K43146.016
36.5
—
16
45
35
K43146.017M
40.5
45/40
17
49.5
40
Stopper
View Details

Rubber Stopper, with Hole

  • Manufactured from high-quality natural rubber in accordance with DIN 12871 standards.
  • Ideal for use with non-aggressive or diluted solutions.
  • Operating temperature range: -25°C to 70°C with a hardness of ~40°.
  • Each stopper size is marked with embossed digits.
  • Provides secure protection during sample storage and transportation.
Rubber and silicone
Product Code
Height mm
Joint N/S
No
Base Diameter mm
Top Diameter mm
K43145.100A
16
7/16
000
9
6
K43145.108B
20
10/15
00
10.5
8
K43145.000C
15.5
10/19
0
13
9
K43145.001D
18.5
12/21
1
14
11
K43145.002F
20
14/23
2
16.5
13
K43145.003
21
—
3
19
14
K43145.004G
22
19/26
4
21
15
K43145.005
23
—
5
22.5
17.5
K43145.006
24
—
6
24.5
20
K43145.007H
27.5
24/29
7
26
20
K43145.008
27.5
—
8
26.5
21
K43145.009
31
—
9
28
21.5
K43145.010J
33
29/32
10
30
26
K43145.011
32
—
11
33
29
K43145.012
34.5
—
12
34.5
30
K43145.013K
37
34/35
13
38.5
31
K43145.014
45.5
—
14
41.5
32
K43145.015L
40.5
40/38
15
42
38
K43145.016
36.5
—
16
45
35
K43145.017M
40.5
45/40
17
49.5
40
K43145.018
33.5
—
18
53.5
48
K43145.019M
45
45/40
19
58
44
K43145.020N
56.5
50/42
20
60
51
K43145.022O
41
55/44
22
65
50
K43145.023
42
—
23
72
59
Stopper
View Details

Cork Stopper, Tapered

  • Manufactured from natural bark material.
  • The reliable construction will not crumble or break easily.
  • Effective for both liquid and solid mediums.
  • Ideal for bottles, flasks and test tubes .
  • Chemically inert and moisture resistant
Cork
Product Code
Height mm
No
Base Diameter mm
Top Diameter mm
W11146.001D
10
1
14
11
W11146.002F
12
2
16
12
W11146.003
12
3
18
14
W11146.005
20
5
23
18
W11146.007H
17
7
26
21
W11146.009
13
9
27.5
23
W11146.010J
13
10
32
28
W11146.011
18
11
33
28
W11146.012
20
12
36
31
W11146.013K
19
13
39
33
W11146.014
14
14
41.5
36
W11146.015L
16
15
43
38
W11146.018
17
18
52.5
48
W11146.020N
19
20
60
54
W11146.022O
20
22
63
57
Stopper
View Details

Silicone Stopper

  • Manufactured from high-quality, food-grade silicone in accordance with DIN 12871 standards.
  • Ideal for use with non-aggressive or diluted solutions.
  • Operating temperature range: -60°C to 270°C with a hardness of ~40°.
  • Each stopper size is marked with embossed digits.
  • Provides secure protection during sample storage and transportation.
Rubber and silicone
Product Code
Height mm
Joint N/S
No
Base Diameter mm
Top Diameter mm
N18146.100C
17
10/19
000
13
8
N18146.108D
21
12/21
00
15
11
N18146.100F
24
14/23
0
17
13
N18146.001
26
—
1
19
14
N18146.002
26
—
2
20
15
N18146.003G
26
19/26
3
23
17
N18146.004
29
—
4
21
19
N18146.005H
28
24/29
5
29
22
N18146.006J
28
29/32
6
33
25
N18146.007K
30
34/35
7
37
28
N18146.008
30
—
8
43
32
N18146.009L
37
40/38
9
46
36
N18146.010M
33
45/40
10
53
42
N18146.011N
37
50/42
11
55
44
N18146.012O
38
55/44
12
62
51
Stopper
View Details