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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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.

Pricing and Availability

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.

Pricing and Availability
Specifications

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

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.

Pricing and Availability
Specifications

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

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

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

Pricing and Availability

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

Helps to contain liquids in testubes or flasks.

Pricing and Availability
Specifications

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

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

Pricing and Availability
Specifications

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

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.

Pricing and Availability
Specifications

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

DWK Life Sciences DURAN™ GLS 80™ screw cap with four ports

Flexible GLS 80™ cap connection system for use with pass through semi-rigid tubing.

Pricing and Availability

DWK Life Sciences DURAN™ Stainless Steel Multiport GL 45 Connector Cap, Red PBT, GL 45, 1 Tubing Connector

1, 2 or 3 connection system for GL 45 DURAN™ bottles.

Pricing and Availability

Gravis Black Phenolic Resin Screw Caps

Providing secure closure for a variety of bottle neck sizes. Gravis Black Phenloic Resin Screw Caps are durable and resilient.

Pricing and Availability
Specifications

Product Type	Cap
Color	Black
Quantity	100 Pack
Material	Phenolic Resin
No. per Pack	100Pack

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

With drip-free pouring ring

Pricing and Availability
Specifications

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

Kautex™ Polypropylene Blister Closures

Manufactured from Polypropylene for excellent resistance to chemicals, bases and acids. Kautex™ Polypropylene Blister Closures are rugged closures for narrow neck bottles.

Pricing and Availability
Specifications

For Use With (Equipment)	500 to 2500 mL Bottle
Product Type	Blister Closure
Material	Polypropylene

Gravis Polyethylene Snap-Caps

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

Pricing and Availability
Specifications

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

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

Pricing and Availability
Specifications

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

DWK Life Sciences Wheaton™ White Polypropylene Caps with PTFE-Faced Foamed Polyethylene Liners

Excellent for environmental samples, pharmaceuticals and diagnostic reagents

Pricing and Availability
Specifications

For Use With (Equipment)	Glass bottle or vial
Color	White
Material	Polypropylene
Certifications/Compliance	ISO 9001

Bottle Caps

Bottle Caps

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