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 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 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 Screw Cap, Linerless Lip Seal, PP
Screw cap with reliable plug seal.

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

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™ 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 |
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™ 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 |
---|---|
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. |
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 |
---|---|
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 DURAN™ Original Laboratory Bottle, Clear, with DIN 168-1 Thread, Graduated, Bottle Only
The gold standard for multifunctional glass laboratory bottles.

Includes | Without screw cap and pouring ring from PP (blue) |
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Material | Borosilicate Glass (3.3) |
Autoclavable | Autoclavable |
For Use With (Application) | Autoclaving of media and reagents; Preparation of media and reagents; Sample collection; Culturing vessel; Storage of media and reagents; Transport and shipping; Liquid handling reservoir |
Fisherbrand™ Type 1 Diagnostic Clear Glass Vials
Provides excellent clarity and dimensional accuracy from vial to vial due to tubular design. Fisherbrand™ Type 1 Diagnostic Clear Glass Vials are manufactured using Type 1 neutral glass.

Thread Style | Screw |
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Type | Diagnostic Vial |
Neck Style | Screw |
Color | Clear |
Style | Tubular |
Material | Borosilicate Glass |
Autoclavable | Autoclavable |
For Use With (Application) | Suitable for freeze drying applications, all diagnostic and pharmaceutical applications |