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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 447 results
1

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

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

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
4

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
5

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

The DURAN™ Open Topped Screw Cap, Central Aperture, Red PBT features an open top with central aperture for use with bromobutyl stoppers, silicone piercing septa or glassware connections. Made from glass-reinforced red PBT for excellent 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
6

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

DURAN™ Stainless Steel Multiport GL 45 Connector Cap, from PBT, GL 45, with 2 Ports. DURAN™ Stainless Steel Multiport GL 45 Connector Cap enables closed, sterile liquid transfer with GL 45 bottles. Features 316L stainless steel construction, freely rotating centre, autoclavable to 121°C, and a USP C

EDGE
7

DWK Life Sciences DURAN™ Membrane Venting GL Screw Cap, Blue PP, Welded-in ePTFE Membrane for Pressure Equalisation During Autoclaving

DURAN™ Membrane Venting GL Screw Cap, Blue PP, Welded-in ePTFE Membrane for Pressure Equalisation During Autoclaving allows safe steam sterilisation of media bottles. The 0.2μm ePTFE membrane enables sterile gas exchange and pressure equalisation while keeping bottle contents sterile.

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
8

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
9

DWK Life Sciences DURAN™ Screw Cap GL 45 with 2-Hose Connector

The DURAN™ Screw Cap GL 45 with 2-Hose Connector provides a versatile, reusable two-port connection system for DURAN™ GL 45 bottles. Ideal for liquid transfer via peristaltic pump, it supports silicone tubing with 6 to 9 mm inner diameter and is fully autoclavable.

EDGE
10

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
11
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
12

Kautex™ Screw Closures

Manufactured with polypropylene for excellent chemical resistance. Kautex™ Screw Closures are rugged caps designed for Kautex™ wide mouth HDPE bottles.

EDGE
Includes Tamper Evident Ring and Conical Seal
Product Type Screw Cap
Color Blue
13

Thermo Scientific™ Nalgene™ Carboy Replacement Screw Closures and Gaskets

Secure-fitting Thermo Scientific™ Nalgene™ Replacement Screw Closures and Gaskets for Nalgene Carboys provide leakproof† service

EDGE
Color White
14

DWK Life Sciences DURAN™ GLS 80™ Screw Cap with Four Ports

The DURAN™ GLS 80™ Screw Cap with Four Ports provides a flexible, modular system for safe liquid and gas transfer within closed, sterile environments. Compatible with five tubing diameters (3.2 to 12.0 mm) and fully compatible with all GLS 80 threads.

EDGE
15
Promotions Available

DWK Life Sciences DURAN™ HPLC Screw Cap, 4 Tubing Connectors, Blue, GL 45, PP

Screw cap for pressure and vacuum resistant bottle for HPLC applications.