Because we think of media and lab bottles as the unsung heroes of most chemistry, life science, and industrial laboratories, we offer a wide variety of shapes, materials, sizes, and cap types to meet a range of needs. These multi-functional containers are suited for a vast range of scientific functions: media and reagent preparation, media sterilization, liquid handling and dispensing, filtration, shipping and transport, sample collection, sterile media storage, sample storage, frozen storage, long-term archival storage, tissue culturing, microbial culturing, heating and cooling samples, preparation of bulk intermediates, and shipping of APIs (active pharmaceutical ingredients).
The first borosilicate glass lab bottles evolved from serum bottles and were available with various Glass Packaging Institute (GPI) threads such as 33-430 and 38-430. In 1972, the wider mouth borosilicate 3.3 glass bottles with metric GL 45 glass threads were introduced in Germany. Our innovative history progressed alongside the evolution of the laboratory media bottles which saw the introduction of square lab bottles, pressure-resistant versions, and the truly wide-mouth GLS 80® bottles.
Today DWK Life Sciences offers a wide range of reusable glass bottles with commonly used thread finishes such as Glass Packaging Institute (GPI) and German DIN GL thread standards. The DURAN® ORIGINAL, WHEATON®, and KIMBLE® KIMAX® GL lab bottles are molded from high-purity, clear, USP / EP Type I borosilicate 3.3 glass, renowned for its excellent thermal qualities and superior resistance to chemical attack. A combination of high-performance materials, robust ISO 4796-1 design, and reusability provide a long working life. The bottles feature an easy-to-read graduated volume scale and marking field in permanent white enamel. For your convenience, a glass bead on the shoulder line indicates the nominal capacity line on 100mL through 2L sizes. The DURAN®, WHEATON®, and KIMBLE® KIMAX® bottles can be supplied as bottles only or, if you prefer, complete with the polypropylene linerless caps and drip-free pouring rings. The DURAN® Original GL 25/32/45 bottles feature a permanent Retrace
Code on each bottle for manufacturing lot traceability and certification.
Choose the materials option that best suits your application, including clear glass, protect / KimCote® plastic safety-coated glass, and amber / low actinic RAY-SORB® for light-sensitive applications. Many of the DURAN®, WHEATON®, and KIMBLE® GL lab bottles are available with a clear plastic safety coating (identifiable as protecting or KimCote®) to provide added fortification against impact or mechanical breakage. With the addition of a fused, external amber RAY-SORB® layer, light-sensitive contents are protected from the effects of photodegradation. Rest assured, the protection against ultra-violet light meets international USP / EP standards and lasts the lifetime of the bottle.
Our KIMBLE® KIMAX® lab bottles have 33-430, and 38-430 threads and are also molded from high-purity, clear, USP / EP Type I borosilicate glass 33, renowned for its excellent thermal performance, and high resistance to chemical attack.
The innovative square DURAN® lab bottles have a space-saving shape that offers the benefit of close and efficient packing — saving up to 20% more space than traditional round bottles. These bottles are ideal for the shipping and storage of high-demand materials or for reagent supply to instruments where bench space is at a premium. When working with larger samples or materials like granules, powders, or viscous liquids, we recommend the DURAN® wide mouth GLS 80® laboratory bottle which allows for easier access.
Be aware, standard glass lab bottles are not designed to safely withstand pressure differentials. The DURAN® pressure plus+ GL 45 bottles, however, offer a safer option for laboratory applications involving a vacuum or pressure. The bottom line? Whatever the application, DWK Life Sciences can provide a suitable laboratory bottle solution.