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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 445 results
1
Promotions Available

DWK Life Sciences DURAN™ Original Laboratory GL Bottle Screw Cap, Linerless Lip Seal, PP

Screw cap with reliable plug seal.

EDGE
Description Screw cap
Quantity 10/Pk.
Material Polypropylene
Autoclavable Autoclavable
For Use With (Application) Autoclaving media and reagents; Short term sample and media storage; color coding and identification
2
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
3
Promotions Available

DWK Life Sciences DURAN™ Screw Connection Cap, GL 45, with 2 or 3 GL 14 ports, PP

Flexible 2 or 3 port GL 45 screw cap for connection cap system

EDGE
Includes GL 14 Insert
Thread Size (Metric) GL 45
Color Blue,Gray
Quantity 2/Pk.
Material Polypropylene,PTFE,Silicone
Autoclavable Autoclavable
For Use With (Application) Sterile fluid transfer in and out of lab bottles; Gas transfer in and out of lab bottles; Fluid transfer between lab bottles; Supply of reagents to instruments; Bioreactor supply
4
Promotions Available

DWK Life Sciences DURAN™ Open Topped Screw Cap, Central Aperture, Red PBT

PBT screw cap with an open top and high temperature and chemical resistance.

EDGE
Product Type Open Top Screw Cap
Color Red
Quantity 10/Pk.
Screw Material Polybutylene Terephthalate (PBT) with glass fiber
Material PBT
Autoclavable Autoclavable
For Use With (Application) Aseptic reagent delivery and culture sampling using a syringe and needle
Closure Material PBT with Glass Fiber
5

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
6
Promotions Available

DWK Life Sciences DURAN™ Stainless Steel Multiport GL 45 Connector Cap, from PBT, GL 45, with 2 Ports

2 or 3 port connector caps for GL 45 DURAN™ bottles.

EDGE
7
Promotions Available

Pyrex™ Polypropylene Screw Caps for Media-lab Bottle

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

Material Polypropylene
Autoclavable Autoclavable
Closure Type Screw Cap
8
Promotions Available

Fisherbrand™ Red PTFE-Coated Screw Caps. GL45

Fisherbrand™ Red PTFE-Coated Screw Caps are chemicaly inert and suitable for capping a variety of similarly threaded laboratory containers.

EDGE
9
Promotions Available

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

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

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.

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™ GL 18 pressure equalization set

Flexible GLS 80™ connection system for the use of semi-rigid hoses.

12
Promotions Available

DWK Life Sciences Tamper Evident Screw Cap, Wide Mouth, Blue PP, for Soda-Lime Glass Screw-Top Square Bottles

Tamper evident cap for wide mouth/short form DIN soda lime glass bottle thread.

EDGE
Quantity 10/Pk.
Material Polypropylene
Autoclavable Autoclavable
For Use With (Application) Storage of samples and reagents; Sample collection; Transport and shipping
13
Promotions Available

DWK Life Sciences DURAN™ PURE GLS 80™ Screw Cap with PTFE-Coated Silicone Seal
BIOPHARMA

High-quality DURAN™ PURE GLS 80™ Screw Cap developed for the needs of the pharmaceutical and biotechnology industries.

14

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
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.

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