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 Kimble Chase™ Soda Lime Glass Culture Test Tubes
Use Soda Glass Cell Culture Test Tubes to analyze cell culture material that are critical to diagnoses and experimentation.

DWK Life Sciences Kimble™ Kontes™ Ultra-Ware™ Microfiltration Assembly Component Parts
Components for Ultra-ware™ microfiltration assembly

For Use With (Equipment) | Ultra-ware microfiltration assembly with PTFE-faced fritted glass support |
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Dnase Free | Yes |
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Product Type | Microtube |
Fisherbrand™ Borosilicate Glass 5.1 Rimless Test Tube
Manufactured from borosilicate glass.

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 Wheaton™ Disposable Individually-Wrapped Plastic Serological Pipets
Irradiation sterilized and suitable for tissue culture work.

Disposable | Single-use |
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Type | Serological Pipet |
Packaging Type | Individually Wrapped |
Graduated | Yes |
Material | Plastic |
Certifications/Compliance | ASTM E934 |
Sterility | Sterile |
Calibrated | Yes |
DWK Life Sciences Wheaton™ Straight Plug Rubber Stoppers
Provides maximum sealing for vials with straight-wall glass finishes. Wheaton™ Straight Plug Rubber Stoppers are manufactured from the highest quality raw materials.

For Use With (Equipment) | Vacule Ampules |
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DWK Life Sciences DURAN™ High Temperature red EFTE Pouring ring, GL 32
Screw cap with cap liner sealing and high temperature and chemical resistance.

Description | Pouring ring |
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Color | Red |
Quantity | 10/Pk. |
Screw Material | ETFE |
Material | PBT,ETFE,Fiberglass |
Autoclavable | Autoclavable |
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 | ETFE |
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™ 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 |