Noted for its highly consistent, reproducible quality, DURAN is a premium brand for laboratory glassware made from borosilicate glass 3.3 and engineered in Germany. The DURAN portfolio comprises over 3,000 products, including beakers, bottles, volumetric glassware, and interchangeable glassware.
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DWK Life Sciences DURAN™ Original Laboratory Bottle, Clear, with DIN 168-1 Thread, Graduated
The gold standard for multifunctional glass laboratory bottles.

Material | Borosilicate Glass (3.3) |
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DWK Life Sciences DURAN™ Original Laboratory GL Bottle Pouring Ring
Screw cap with reliable plug seal.

Description | Pouring ring |
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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 |
DWK Life Sciences DURAN™ Original Laboratory GL Bottle Screw Cap, Linerless Lip Seal, PP
Screw cap with reliable plug seal.

Description | Screw cap |
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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 |
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.

Description | Screw cap |
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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 Pipette bulb red, natural rubber, 2 ml
For removing or dispensing small quantities of liquids from Pasteur pipette or droppers.

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 |
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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™ Screw Cap GL 45 with 2-hose connector
A resusable connector GL 45 cap with two ports for connecting tubing.

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.

Product Type | Open Top Screw Cap |
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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 Open Top for Tube Connection, Blue, GL 14, Glass Re-enforced, PP (Screw Connection Cap GL 45 Accessory)
Accessory for 2 or 3 port GL 45 connection cap system

DWK Life Sciences Wheaton™ Glass 20mL Scintillation Vials: Polypropylene Caps
Maintain integrity of seal with variety of cap liners. Wheaton Science Products™ Glass 20mL Scintillation Vials: Polypropylene Caps are Chemically inert, suitable for strong solvents and high-purity chemicals.

Height (Metric) | 61 mm |
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Volume (English) | 0.67 oz. |
Packaging Type | Cellular Trays |
Diameter (Metric) Outer | 28 mm |
Color | Clear |
Diameter (English) Outer | 1.1 in. |
Volume (Metric) | 20 mL |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E438, Type I, Class A |
Closure Color | White |
Closure Type | Screw Cap |
Height (English) | 2.4 in. |
Wheaton™ White Polypropylene Screw Caps
Suitable for most applications that call for screw neck bottles. Wheaton™ White Polypropylene Screw Caps are manufactured from sturdy polypropylene plastic.

DWK Life Sciences DURAN™ Insert for Screw Cap GL 14, Silicone/PTFE (Screw Connection Cap GL 45 Accessory)
Accessory for 2 or 3 port GL 45 connection cap system

Thread Size (Metric) | GL 14 |
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Diameter (Metric) | 87 mm |
Quantity | 1 Ea. |
Material | Polypropylene,PTFE |
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™ Stopcock, with PTFE Spindle, for desiccator lid outlets, type NOVUS (standard ground joint NS 24/29)
The PTFE spindle valve is used for airtight sealing of a desiccator.

DWK Life Sciences Disposable Culture Tube, from Soda-lime Glass, with DIN thread, with TPE seal and PP screw cap
Culture tubes are used for growing cultures from liquid media.

Includes | With TPE seal |
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For Use With | Growth of microorganisms; Storage and transport of small quantities of liquids and sterile cultures |
Description | 1 mm thickness |
Quantity | 100/Pk. |
Material | Soda Lime Glass, Polypropylene, TPE |
Autoclavable | Not Autoclavable |
DWK Life Sciences Beaker, Low Form, With Spout
Greener Choice Product
This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
Learn More About the Greener Choice Program

This product offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
Learn More About the Greener Choice Program
Due to its shape, the beaker is a universal product for a wide range of laboratory applications.

Material | Borosilicate Glass (3.3) |
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Autoclavable | Autoclavable |
For Use With (Application) | Heating; Diluting solutions; Mixing several components; Measuring liquid amounts; Sizes 5 and 10 mL without Retrace Code and graduation and size 10000 mL non-DIN/ISO size |