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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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1 – 15 of 56 results
1
Promotions Available

Pyrex™ Polypropylene Screw Caps for Media-lab Bottle

Pyrex™ Polypropylene Screw Caps are ideal for media preparation work.

EDGE
Material Polypropylene
Autoclavable Autoclavable
Closure Type Screw Cap
2
Promotions Available

Thermo Scientific™ Heat-Shrink Bands for Nalgene™ PETG Media Bottles

Ensure the integrity of bottle contents with these tamper-resistant seals. Heat-shrink bands are gamma stable and include a perforated tear strip feature for easy removal.

EDGE
Product Type Heat-shrink Band
No. per Case 1000
Material PETG
No. per Pack 1000
3

Corning™ PYREX™ Media Bottle High-Temperature Caps, Open-Top

With drip-free pouring ring

For Use With (Equipment) Storage bottle
Product Type Open Top Cap
Color Red
No. per Case 10/Cs.
Material PBT
Closure Color Red
No. per Pack 10/Pk.
Closure Type High Temperature
Closure Material PBT
Sterility Non-sterile
4

DWK Life Sciences Wheaton™ Media/Laboratory Bottle Caps

For use with Wheaton media bottles

For Use With (Equipment) Media bottle
Color Black
No. per Case 200 Cs.
6

DWK Life Sciences Wheaton™ Phenolic Screw Caps for Media Bottles

PTFE faced (14B) styrene-butadiene rubber liner provides totally inert inner seal and surface facing the sample or product

7
Promotions Available

DWK Life Sciences DURAN™ High Temperature Screw Cap, PTFE-Coated, Peroxide cured silicone, Red PBT

Screw cap with cap liner sealing and high temperature and chemical resistance.

EDGE
Description Screw cap
Color Red
Closure Liner PTFE/Silicone
Quantity 10/Pk.
Screw Material Polybutylene Terephthalate (PBT) with glass fiber
Material PBT,ETFE,Fiberglass
Liner Material PTFE-coated Silicone
For Use With (Application) Autoclaving of media and reagents; Preparation of media and reagents; Suitable for dry heat sterilization; Pressure applications; Storage of corrosive reagents; Chemical and thermal reactions; Long term / archival storage of samples, media and reagents; Sampling; Transport and shipping
Closure Material PBT with Glass Fiber
8
Promotions Available

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

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
9
Promotions Available

DWK Life Sciences DURAN™ Premium PFA Pouring Ring, GL 45

Screw bottle closure with cap liner sealing that offers higher temperature and chemical resistance.

EDGE
10
Promotions Available

DWK Life Sciences DURAN™ Multi-Connector Cap, GL 45, Tubing Connectors, for peristaltic tubing, 2, 3, 4, or 5 tubing connectors, Red PBT screw cap

2, 3, 4, or 5 peristaltic tubing connector caps for GL 45 DURAN™ bottles.

EDGE
For Use With (Application) Media supply for small bioreactors; Fed-batch bioreactor; Perfusion circuit for cell culture; Oxygenation/aeration of very small samples; Use in a chemistry micro-reactor
11
Promotions Available

DWK Life Sciences DURAN™ YOUTILITY™ Pouring Ring, Cyan PP, GL 45

The DURAN™ YOUTILITY™ screw cap features a secure grip, fast opening, and quick closing.

EDGE
12
Promotions Available

DWK Life Sciences DURAN™ GLS 80™ Screw Cap, Blue PP, Linerless Lip Seal

Blue PP GLS 80™ wide-mouth screw cap (plug seal) and drip free, PP pouring ring for GLS 80™ bottles

EDGE
13

DWK Life Sciences DURAN™ GLS 80™ Pouring Ring, Blue PP

Blue PP GLS 80™ wide-mouth screw cap (plug seal) and drip free, PP pouring ring for GLS 80™ bottles

EDGE
14
Promotions Available

DWK Life Sciences DURAN™ GLS 80™ High Temperature Screw Cap, with PTFE-Coated Silicone Cap Liner

White PSU GLS 80™ wide-mouth screw cap (cap liner seal) and drip free, PTFE pouring ring for GLS 80™ bottles.

EDGE
15

DWK Life Sciences DURAN™ Premium Screw Cap, Colourless PFA, with PTFE-coated (Platinum cured) silicone cap liner

Screw bottle closure with cap liner sealing that offers higher temperature and chemical resistance.

EDGE
Description Screw cap
Quantity 5/Pk.
Material PFA,PTFE,Silicone
Autoclavable Autoclavable
For Use With (Application) Autoclaving of media and reagents; Preparation of media and reagents; Reservoir cap for supplying laboratory instruments; Port assemblies for spinner flasks, and cell culture vessels; Single port vent for autoclaving media in large bottles; Transport and shipping