STOPPERS
339
Rubber
Silicone Stoppers with Holes General purpose single-hole silicone rubber stoppers.
Pluro Stopper Set This autoclavable set of neoprene rubber adapters is designed to fit Buchner and fritted glass funnels.
• •
Steam autoclavable
Opaque yellowish-white color
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Set of seven Pluro stoppers for filter funnels Can be used singly or nested with adjacent sizes
• Stoppers are manufactured from pure silicone rubber
• Eliminates the need for boring of special size holes in rubber stoppers • Reduces the risks associated with insertion and removal of glass stems through rubber stoppers • 852050-0004 is just Pluro stopper size 4
Part Number 953715-0501 953715-0801 953763-0801 953763-0000 953763-1201
Stopper Number
Hole Size (in)
Case Qty
5 8 8 8
0.375 0.375
1 1 1 5 1
0.5625 0.5625 0.5625
Part Number 852050-0070 852050-0004
Case Qty
7
12
12
Gray Butyl Rubber Lyophilization-Style Stoppers • Designed for aluminum seal finish vials • Two-leg style reduces possibility of legs sticking together •
Gray high grade butyl rubber, lyophilization style
Fits GPI Aluminum Seal Finish
Part Number
Number of Legs Case Qty
Plug-Type Rubber Sleeve Stoppers Uses include outgassing NMR tubes, pressure venting or adding reactants via syringe.
73828-13 73828A-21
13 20
2 2
1,000 1,000
• Hollow, plug-type stopper fits into the neck of the glassware apparatus • Sleeve extension fits over the neck for a secure seal • Diaphragm can be punctured with a syringe needle • Series 774261 may be used at up to 125 °C for up to 8 hours
Gray Chlorobutyl Straight-Sided Stoppers These high quality gray chlorobutyl stoppers are used for research and pharmaceutical packaging applications.
Part Number 774250-0007 774261-0008
Stopper Fits 7-8 mm OD 9-10 mm OD
Color
Case Qty
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Universal gray chlorobutyl formulation passes Japanese, European and United States pharmacopeia testing for globally marketed pharmaceutical products Formulation contains no plasticizers, 2-mercapto-benzothaizole, nitrosamine precursors or natural rubber latex
Red
50 50 50 50 50 50
White White
774261-0014 Standard Taper 14/20
774250-0016
16-17 mm OD
Red
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774261-0019 Standard Taper 19/22 774261-0024 Standard Taper 24/40
White White
• Formulation is applicable to aqueous solutions with a pH range of 2 to 10 • 73811T series has PTFE facing to improve chemical compatibility and minimize surface interactions
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Durometer 50
Part Number
Fits GPI Aluminum Seal Finish
Case Qty
73811-13 73811T-13 73811-21 73811T-21
13 13 20 20
1,000
100
1,000
100
Gray Butyl Rubber Stoppers •
Silicone Stoppers These silicone stoppers are used in centrifugal separators and gas sampling tubes.
Designed for aluminum seal finish vials Economical alternative for low temperature applications
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Gray butyl rubber
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Available in blind-hole and full-hole
Blind hole stopper features easy syringe penetration
Part Number
Fits GPI Aluminum Seal Finish
Case Qty
Part Number Stopper OD (mm)
Style
Case Qty
73827-13 73827-21
13 21
1,000 1,000
774200-0022 774200-0023
6 6
Blind hole Full hole
12 12
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