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Bottle Caps

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 398 results
1

Fisherbrand™ Red PTFE-Coated Screw Caps

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

EDGE
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

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
4

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
5

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
6

Neville and More™ Ribbed Tamper Evident Caps for Alpha Glass Bottles

Helps to contain liquids in testubes or flasks.

Shape Round
Closure Size 2.8 cm
Diameter (Metric) Inner Neck 2.8 cm
Material Polypropylene
Closure Type Tamper-evident Ribbed Cap
For Use With (Application) Contains liquid
Closure Material Polypropylene
Closure Included Yes
7

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.

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™ 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

Thread Size (Metric) GL 45
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
9

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

Gravis Polyethylene Snap-Caps

Providing secure closure for glass sample bottles. Gravis Polyethylene Snap-Caps are available for different size closures.

Product Type Snap Cap
Material Polyethylene
Closure Type Snap
Closure Material Polyethylene
12

DWK Life Sciences Kimble™ Kontes™ HPLC Economy 3-Hole Ultra-Ware Cap Systems

With plastic coating that blocks virtually all UV light up to 385 nm, preventing photodegradation of light sensitive mobile phases

For Use With (Equipment) Bottle
No. per Case 1 Cs.
Material PTFE
13

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
14

DWK Life Sciences DURAN™ Original Laboratory GL Bottle Pouring Ring

Screw cap with reliable plug seal.

EDGE
Description Pouring ring
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
15

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

Replacement Black Phenolic Screw Caps for Media Bottles

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