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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16 – 30 of 1,393 results

DWK Life Sciences Kimble™ Black Phenolic Screw-Thread Closures

Highly resistant to temperature and steam during autoclaving

Pricing & Availability
Specifications

For Use With (Equipment)	Bottle
Product Type	Screw Cap
Color	Black
Material	Phenolic Resin
Autoclavable	Autoclavable

DWK Life Sciences Wheaton™ Black Phenolic Screw Cap with PTFE-Faced Rubber Liner

Features PTFE faced (14B) styrene-butadiene rubber liner

Pricing & Availability
Specifications

For Use With (Equipment)	Bottle
Color	Black
Closure Liner	PTFE/14B Rubber
Material	Phenolic Resin
Certifications/Compliance	ISO 9001
Autoclavable	Autoclavable

DWK Life Sciences Kimble™ Phenolic Caps with Taperseal Liners (Cone Shaped)

Provides excellent sealing capabilities in liquid applications; seal is made across the top and the inside diameter of the container.

Pricing & Availability
Specifications

For Use With (Equipment)	Bottle
Product Type	Phenolic Cap
Color	Black
Closure Liner	Taperseal
Material	Phenolic Resin

DWK Life Sciences DURAN™ GL 45 Screw Caps for Laboratory Glass Bottles

Distinguishing media types is simplified and interchanging of screw caps and carry over of substances is effectively excluded.

Pricing & Availability
Specifications

Closure Size	GL 45
For Use With (Equipment)	Laboratory glass bottles
Product Type	Screw Cap

Corning™ Black Phenolic Threaded Screw Caps

Resist effects of temperature and steam in autoclaving

Pricing & Availability
Specifications

Product Type	Screw Cap
Color	Black
Material	Phenolic Resin
Liner Material	Rubber

DWK Life Sciences DURAN™ Screw Caps for GL 45 Laboratory Glass Bottles

Suitable for silicone seal for piercing (Septa).

Pricing & Availability

DWK Life Sciences DURAN™ Stirred Bottle Reactor, PP / PTFE / PEEK / Stainless Steel Contact surfaces

Easy-to-use GL 45 lab bottle based reactor system with tubing connectors for use with magnetic stirrers.

Pricing & Availability
Specifications

Thread Size (Metric)	GL 45
Quantity	1 Ea.
Material	Polypropylene,PTFE,PEEK,Stainless Steel
Autoclavable	Autoclavable
For Use With (Application)	Simple, low cost, bioreactor; Simple continuous flow stirred reactor; Mixing liquids, samples or reagents; Photo-bioreactor

Restek™ Mobi-Cap GL-45 Bottle Tops

Protect mobile phases from evaporation and contamination while also protecting the lab from harmful vapors

Pricing & Availability
Specifications

Includes	Tubing Connector Nuts, Color-Sleeve Adaptors, and Ferrules
Thread Size (Metric)	1/4-28
For Use With (Equipment)	GL-45 Threaded Bottles
Neck Finish	78 mm
Material	Polypropylene

DWK Life Sciences Wheaton™ Media/Laboratory Bottle Caps

For use with Wheaton media bottles

Pricing & Availability
Specifications

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

Corning™ GL45 Three-Hole Delivery Cap, Red High Temperature (180°C) PBT with PTFE liner

For use with 1/8 in. O.D. PTFE tubing

Pricing & Availability

DWK Life Sciences Kimble™ Kontes™ Ultra-Ware Three Hole Delivery Caps ETFE Nut Plug 1/4 in.

Used to Seal Ports with Flat Bottom 1/4 in.-28 Threads

Pricing & Availability

DWK Life Sciences DURAN™ GL 18 pressure equalization set

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

Pricing & Availability

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 & Availability
Specifications

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

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.

Pricing & Availability
Specifications

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

Diba Omnifit™ T-Series Bottle Caps

Easy to use and versatile range of caps requires no fittings

Pricing & Availability
Specifications

Disposable	Reusable
For Use With (Equipment)	T series solvent bottle
Product Type	Solvent Waste Cap
No. per Case	1 Cs.
Material	PTFE
Autoclavable	Not Autoclavable
Sterility	Non-sterile

Bottle Caps

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DWK Life Sciences Kimble™ Black Phenolic Screw-Thread Closures GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences Wheaton™ Black Phenolic Screw Cap with PTFE-Faced Rubber Liner GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences Kimble™ Phenolic Caps with Taperseal Liners (Cone Shaped) GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences DURAN™ GL 45 Screw Caps for Laboratory Glass Bottles Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Corning™ Black Phenolic Threaded Screw Caps Greener ChoiceOffers one or more environmental benefits itemized in the U.S. FTC “Green Guides.”Learn More

DWK Life Sciences DURAN™ Screw Caps for GL 45 Laboratory Glass Bottles GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences DURAN™ Stirred Bottle Reactor, PP / PTFE / PEEK / Stainless Steel Contact surfaces Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Restek™ Mobi-Cap GL-45 Bottle Tops Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences Wheaton™ Media/Laboratory Bottle Caps GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences Kimble™ Kontes™ Ultra-Ware Three Hole Delivery Caps ETFE Nut Plug 1/4 in. Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences DURAN™ GL 18 pressure equalization set Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences Kimble™ Kontes™ HPLC Economy 3-Hole Ultra-Ware Cap Systems Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

DWK Life Sciences DURAN™ Premium Screw Cap, Colourless PFA, with PTFE-coated (Platinum cured) silicone cap liner Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More