Name: GL 45 Media Bottle Starter Pack, Set Of 10, 1 Each
Brand: United Scientific
SKU: BMSET10
Price: 127.00 USD
Availability: InStock

<h2>What Are Glass Media Bottles?</h2>
 Glass media bottles are borosilicate screw-cap storage vessels designed for preparing, autoclaving, and dispensing laboratory culture media, biological buffers, and liquid reagents. Unlike Erlenmeyer flasks with foam closures, media bottles have threaded screw caps providing a leak-proof seal for transport, dispensing, and long-term storage. Globe Scientific glass media bottles at MBP are manufactured from borosilicate glass (ASTM E438 Type I / USP Type I), supplied with polypropylene (PP) screw caps, and are autoclavable at 121&deg;C. Choose clear borosilicate for most reagents; choose amber glass for light-sensitive compounds such as photodegradable stains, bilirubin standards, certain vitamin solutions, and riboflavin. 
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<h2 dir="ltr">What you will find:</h2>
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Borosilicate glass media bottles
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Autoclavable media storage bottles
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Amber glass media bottles for light-sensitive liquids
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Graduated glass storage bottles
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Leakproof laboratory media bottles
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Wide-mouth glass reagent bottles
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Glass bottles with pouring rings
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Sterile-ready glass media containers
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<h2>How to Choose Glass Media Bottles</h2>
 Clear vs. Amber Glass Clear borosilicate media bottles are appropriate for reagents that are not UV- or visible-light-sensitive. Amber glass bottles filter light below approximately 450nm, protecting light-degradable contents from photodegradation. Common applications for amber storage include: ethidium bromide solutions, crystal violet stain, bilirubin calibrators, vitamin B2 (riboflavin) solutions, and other photosensitive reagents. Choose amber glass when the reagent specification or manufacturer's instructions recommend light protection. Wide-Mouth vs. Standard Neck Standard-neck media bottles are suited for liquid-to-liquid transfers and dispensing. Wide-mouth media bottles allow easier filling with solid powder media (agar, broth powder, salt), scooping viscous materials, and thorough cleaning &mdash; preferred for culture media preparation where media powder is dissolved directly in the bottle. Graduated vs. Non-Graduated Graduated media bottles have approximate volume markings for guidance during media preparation without a separate measuring cylinder. Markings are typically &plusmn;5% and are not certified for precision volumetric work. Cap and Pouring Ring PP screw caps are autoclavable at 121&deg;C. Loosen caps one quarter-turn before autoclaving to allow steam pressure equalisation. Some formats include a pouring ring insert on the neck interior that prevents liquid from running down the outside of the bottle when dispensing.
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<h2>Specifications Context</h2>
 Globe Scientific glass media bottles are manufactured from borosilicate glass conforming to ASTM E438 Type I and USP Type I, providing chemical resistance to acids, bases, alcohols, and most organic solvents. PP screw caps are autoclavable at 121&deg;C; verify PP compatibility with any strong oxidising acid or halogenated solvent before use. Amber glass attenuates light below ~450nm, protecting photosensitive contents during storage. MBP stocks clear and amber glass media bottles from Globe Scientific for labs in the US, Canada, and worldwide.
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Glass Media Bottles

United Scientific

Key Specifications

GL 45 Media Bottle Starter Pack, Set Of 10, 1 Each

United Scientific® GL 45 Media Bottle Starter Pack, Set Of 10 by United Scientific is a set of ten autoclavable borosilicate glass media bottles: two 100 mL, three 250 mL, three 500 mL, and two 1000 mL. Each has white imprinted graduations, a marking spot, and a linerless GL45 polypropylene cap with drip-free ring rated to 140°C. Microbiology, teaching, and research labs use it to start a mixed-size media bottle stock.