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

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 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. |
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 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. |
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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 |
Wheaton™ Rubber Freeze Dry Stoppers
Provides for safe and secure closure of bottles and vials. Wheaton™ Rubber Freeze Dry Stoppers are manufactured from butyl rubber.

For Use With (Equipment) | Diagnostic vials |
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Product Type | Plug Stopper |
Color | Gray |
Material | Butyl Rubber |
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™ 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 Kimble™ Titeseal™ 1mL Shell Vials, Clear; 51 Expansion borosilicate glass
8 x 43mm

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 |
DWK Life Sciences STERIPLAN™ Petri Dish, from Soda-lime Glass
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
Petri dishes are used for the cultivation of bacteria, yeasts, plant and animal cells on solid media.

Material | Soda Lime Glass |
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No. per Pack | 10/Pk. |
For Use With (Application) | Growth and cultivation of microorganisms; Cultivation on solid gel culture medium; Microscopy of microorganisms; Cell culture |
Autoclavable | Not Autoclavable |