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Bottle Caps

Bottle caps provide an air-tight seal that ensures that a bottle’s contents are leak- and spill-proof, resistant to temperature and that the bottle can be moved. The most ubiquitous style is the threaded screw cap. Caps are available in different sizes and colors and can be specialized for the type of container they sit upon. Popular cap materials include phenolic plastic, polypropylene and PTFE. Bottle caps can be lined with additional material and can be found in solid design or open design, which calls for a septa or insert for complete closure.
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31 – 45 of 1,585 results
31

Thermo Scientific™ Nalgene™ Septum Closures: Sterile, Bulk Pack, 38-430mm
GREENER_CHOICE

Combine elastomeric sealing of silicone with nonreactive PTFE reagent contact surfaces in these septum closures for media bottles.

EDGE
Description Nalgene Closure for Media Bottles
For Use With (Equipment) Nalgene Sterile PET and PETG media bottles
Product Type Septum Closure
Color White
Packaging Bulk
Material HDPE
Certifications/Compliance Manufactured in compliance with ISO 13485 quality requirements
Liner Material Silicone, PTFE
Fit for Purpose Sterile
Sterility Sterile
32

DWK Life Sciences Membrane Venting GL Screw Cap, Blue PP, Welded-in Expanded PTFE Membrane, Membrane for Pressure Equilisation During Autoclaving
SDP

Laboratory bottle screw caps for autoclaving and sterile storage of media.

EDGE
Quantity 5/Pk.
Material Polypropylene,ePTFE
Autoclavable Autoclavable
For Use With (Application) Pressure equalisation during steam sterilisation/autoclaving of media or buffers; Sterile gas exchange for aerobic microbial, shaker and suspension cell cultures; Autoclaving of media and buffers; Short-term storage of sterilised media; Storage of gas generating materials
33

DWK Life Sciences Wheaton™ BOD Bottle Cap
SDP

For use with Wheaton 60 and 300mL BOD bottles and 300mL Black Borosilicate BOD bottles

EDGE
34

DWK Life Sciences Kimble™ Phenolic Caps with PTFE-Faced LDPE Foam Liners
SDP

Offers excellent chemical and solvent resistance

EDGE
For Use With (Equipment) Bottle
Product Type Phenolic Cap
Color Black
Closure Liner PTFE/LDPE Foam
No. per Case 144 Cs.
Material Phenolic Resin
35

DWK Life Sciences DURAN™ Screw Cap GL 45 with 2-hose connector
SDP

A resusable connector GL 45 cap with two ports for connecting tubing.

EDGE
36

DWK Life Sciences Wheaton™ White Polypropylene Screw Caps with bonded PTFE Faced Silicone Liner for E-Z Ex-Traction™ Vials
GSA_VA SDP

PTFE faced silicone liner ideal for storage and containment of volatile solvents, sensitive compounds or corrosive chemicals

EDGE
Color White
Closure Liner PTFE/Silicone
Material Polypropylene
Certifications/Compliance ISO 9001
Autoclavable Autoclavable
37

DWK Life Sciences Wheaton™ Replacement Caps for Boston Round Bottles, Black Phenolic with Rubber Liners
SDP

Ideal for cell culture work.

EDGE
38

Thermo Scientific™ Nalgene™ Mason Jar Replacement Closures
GSA_VA GREENER_CHOICE

Fit these replacement closures onto Thermo Scientific™ Nalgene™ Mason Jars.

EDGE
39

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures: Bulk Pack
GREENER_CHOICE

Eliminate spills with these one-piece, colored, polypropylene closures, which fit narrow-mouth 4mL bottles.

EDGE
Height (Metric) 8 mm
Shape Round
Description Nalgene Colored Closures
Thread Size (Metric) 13-415
No. per Case 2,000
Material Polypropylene
For Use With (Equipment) Nalgene narrow-mouth 4mL bottles
Product Type Screw Cap
Diameter (Metric) 16 mm (Outer)
Mouth Narrow
Packaging Bulk
Certifications/Compliance Manufactured in compliance with ISO 13485:2016 quality requirements. Closures meet FDA CFR21 177.1520 for food and beverage use, USP Class VI. Meet the requirements of light-resistant containers per USP latest edition when used with opaque bottles.
No. per Pack 2000
Liner Material Unlined
Height (English) 0.315 in.
40

DWK Life Sciences Wheaton™ Black Phenolic Open Top Cap with Gray Butyl Septa and Flange
GSA_VA SDP

Replacement Black Phenolic Screw Caps for Media Bottles

EDGE
Includes Gray Butyl septa and flange
For Use With (Equipment) Bottle
Product Type Open Top Cap
Neck Finish 33-430
Color Black
Material Phenolic Resin
Certifications/Compliance ISO 9001
41

DWK Life Sciences Kimble™ Phenolic Caps with Solid PE Liners
SDP

Has good resistance to acids, alcohols, alkalis, aqueous solutions, oils, solvents

EDGE
For Use With (Equipment) Bottle
Product Type Phenolic Cap
Color Black
Closure Liner Polyethylene
No. per Case 144 Cs.
Material Phenolic Resin
42

Thermo Scientific™ Nalgene™ Closures for Dropper Bottles: Bulk Pack
GREENER_CHOICE

Order these closures, which are available in multiple colors to help identify reagents, to complete your dropper bottle system.

EDGE
For Use With (Equipment) Dropper Bottles 312750 and 312751.
Product Type Dropping Bottle Screw Cap
Neck Finish 15-415
No. per Case 2000
Material Polypropylene
Certifications/Compliance Manufactured in compliance with ISO 13485:2003 quality requirements. Dropper Bottle Closures meet the requirements of 21CFR177.1520 for food and beverage use, USP Class VI.
No. per Pack 2000
Closure Material Polypropylene
Closure Included Yes
43

DWK Life Sciences Wheaton™ Black Phenolic Screw Caps with PTFE faced 14B Rubber Liners for E-Z Ex-Traction™ Vials
GSA_VA SDP

Designed to ensure the ultimate in product safety

EDGE
Color Black
Closure Liner PTFE/Rubber
Material Phenolic Resin
Certifications/Compliance ISO 9001
44

DWK Life Sciences Kimble™ GL 45 Clear Pour Ring
GSA_VA GREENER_CHOICE SDP

Clear Polypropylene Pour Rings for use with GL 45 media bottles and flasks.

EDGE
Thread Size (Metric) GL 45
Max. Temperature (English) 140°C
No. per Case 10 Cs.
Material Polypropylene
45

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures with 38-430 Finish
GSA_VA GREENER_CHOICE

Ensure leakproof performance with these colored, polypropylene closures with 38-430 finish. Closures are one-piece and linerless with integrally molded seal ring.

EDGE
Height (Metric) 27 mm
Shape Round
Description Nalgene Colored Closures
Thread Size (Metric) 38-430
For Use With (Equipment) Nalgene Narrow-Mouth 1000mL Bottle
Product Type Screw Cap
Mouth Narrow
Packaging Bulk
No. per Case 250
Material Polypropylene
No. per Pack 250
Liner Material Unlined
Height (English) 1.06 in.