Globe Scientific

Carboys

<h2 data-section-id="1pn5j3m" data-start="0" data-end="31">What Are Laboratory Carboys?</h2>
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Laboratory carboys are large-volume plastic containers&mdash;10 L, 20 L, and 50 L being the standard sizes&mdash;used for bulk storage, transport, and dispensing of DI water, buffers, culture media, reagents, and liquid waste. They are manufactured from polypropylene (PP, autoclavable at 121&deg;C) or HDPE (broad chemical resistance, rated to &minus;100&deg;C) with integrated handles, molded liter/gallon graduations, and screw caps with PP integral-seal closures. Optional spigots enable gravity-controlled dispensing without lifting. The rectangular profile of modern carboys maximizes shelf density compared to round containers of the same volume. Globe Scientific EZgrip carboys are molded from USP Class VI, FDA-grade resins&mdash;PP for autoclavable applications and HDPE for chemical and cold storage. PP carboys are the correct choice for autoclave sterilization; cap must be loosened before every autoclave cycle to prevent collapse during cooling.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
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Small carboys (4&ndash;8 L) for bench-top use and daily workflows
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Medium carboys (10&ndash;20 L) for routine liquid storage
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Large carboys (20&ndash;50 L+) for bulk storage applications
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Polypropylene (PP) carboys for autoclavable use
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HDPE carboys for chemical-resistant storage
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Carboys with spigots for easy dispensing
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</ul>
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<h2 data-section-id="og787b" data-start="962" data-end="997">How to Choose Laboratory Carboys</h2>
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Material: PP vs HDPE
Polypropylene is used when autoclave sterilization is required, as it tolerates 121&deg;C steam cycles with the cap loosened. PP also provides resistance to most acids, bases, and alcohols and offers partial translucency for content visibility. HDPE is not autoclavable at 121&deg;C but provides broad chemical resistance, low leachables, and performance down to &minus;100&deg;C, making it suitable for non-sterile chemical storage, waste collection, and cold buffer holding.
Volume
The 10 L carboy is used for media preparation batches, chromatography buffer reservoirs, and bench-scale waste collection. The 20 L carboy is standard for daily buffer preparation, fermentation media supply, and larger waste workflows. The 50 L carboy is reserved for high-throughput bioprocessing, large fermentation systems, and bulk waste accumulation where frequent emptying of smaller units is impractical.
Spigot vs No Spigot
Spigot-equipped carboys allow controlled gravity dispensing without lifting, reducing spill risk and handling strain. Non-spigot carboys are emptied by manual pouring and typically require a dedicated pouring cap for control. Spigots are recommended for 20 L and larger volumes due to handling safety and workflow efficiency.
Amber vs Natural
Natural (translucent) carboys are used for most standard buffers and reagents where visual level monitoring is sufficient. Amber HDPE carboys are used for light-sensitive reagents, biological media, and pharmaceutical intermediates where UV and visible light protection is required during storage.
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<h2 data-section-id="1jl751w" data-start="3200" data-end="3225">Specifications Context</h2>
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Globe Scientific EZgrip PP carboys are molded from USP Class VI, FDA-grade autoclavable polypropylene with integrated handles for safe lifting and transport. EZgrip HDPE carboys are produced from USP Class VI, FDA-grade HDPE with optional amber variants meeting USP &lt;671&gt; light transmission requirements. As of 2026, 20 L PP carboys with spigots are widely used in pharmaceutical pilot labs and academic biochemistry departments for sterile buffer preparation and chromatography feed supply systems. Explore jerricans for 5&ndash;20 L active transport containers and sample storage containers for smaller-volume applications.
<a href="https://mbpinc.net/contact-us">Connect with the MBP team today</a> to discuss your specific volume requirements and chemical compatibility, and find the perfect carboy for your laboratory&rsquo;s bulk storage needs.

Brochure

Diamond® RealSeal™ Heavy Duty PP Carboys Specifications

Diamond® RealSeal™ Heavy Duty Round PP Carboys

7240010 by Globe Scientific: 10 L heavy-duty round polypropylene carboy with integrated handles, molded graduations, and thick walls that hold full vacuum for up to 8 hours. Autoclavable at 121°C. Latex-free. Supplied 6/case. Part of the Diamond® RealSeal™ line (5–50 L).

Manufacture

Carboy, Round with Handles, Heavy Duty PP, White PP Screwcap, 10 Liter, Molded Graduations, Autoclavable, CS/6

Carboy, Round with Handles, Heavy Duty PP, White PP Screwcap, 20 Liter, Molded Graduations, Autoclavable, CS/4

Carboy, Round with Handles, Amber HDPE, Amber PP Screwcap, 10 Liter, Molded Graduations, Autoclavable, CS/6

Carboy, Round with Handles, Amber HDPE, Amber PP Screwcap, 20 Liter, Molded Graduations, Autoclavable, CS/4

Large Format Bottles

<h2 data-section-id="58pdv0" data-start="0" data-end="44">What Are Large Format Laboratory Bottles?</h2>
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Large format laboratory bottles are high-capacity storage containers designed for the preparation, storage, transport, and dispensing of culture media, biological buffers, reagents, chemical solutions, and laboratory waste streams. Typically ranging from 2 L to 20 L, these bottles are used when standard media bottles no longer provide sufficient capacity for laboratory workflows. Volumes between 2 L and 4 L are commonly available as large media bottles, while capacities above 4 L are often categorized as carboys. Large format bottles are manufactured from polypropylene (PP), HDPE, and PETG to accommodate different sterilization requirements, chemical compatibility needs, and storage conditions.
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<h2 dir="ltr">What you will find:</h2>
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Large format bottles (2 L to 5 L) for routine bulk storage
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Extra-large bottles (5 L to 8 L+) for high-volume workflows
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Wide-mouth bottles for easy filling and cleaning
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Narrow-mouth bottles for controlled pouring
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HDPE large bottles for strong chemical resistance
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Polypropylene bottles for autoclave-compatible use
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</ul>
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<h2 data-section-id="1p80bh5" data-start="1136" data-end="1184">How to Choose Large Format Laboratory Bottles</h2>
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Material and Sterilization Requirements
Polypropylene (PP) large format bottles are the preferred choice when autoclave sterilization is required. They can withstand repeated sterilization cycles at 121&deg;C and are widely used for sterile media and buffer preparation. HDPE bottles offer excellent chemical resistance and are commonly selected for reagent storage, waste collection, and applications involving corrosive chemicals. PETG bottles provide exceptional transparency and are suitable for applications where visual monitoring of liquid levels is important, although they cannot be autoclaved.
Neck Size and Closure Compatibility
Large format bottles are available with several closure styles depending on capacity and intended use. Bottles in the 2&ndash;4 L range commonly utilize GL45 threaded closures that are compatible with many filtration and dispensing accessories. Larger bottles may feature wider neck openings that simplify filling, cleaning, and powder transfer operations. When using filtration systems or replacement caps, confirm thread compatibility before purchase.
Handle Design and Ergonomics
As bottle size increases, handling becomes a more important consideration. Integrated handles and ergonomic grip designs improve safety when transporting or pouring large volumes of liquid. Bottles intended for frequent dispensing often include drip-resistant pouring features, while larger storage systems may be paired with dispensing taps or valves to eliminate the need for lifting.
Graduation Markings
Most large format bottles include molded graduations that allow approximate volume measurement during filling and dispensing. Graduation intervals become larger as bottle size increases, making them suitable for general volume estimation rather than precise measurement. For applications requiring accurate volumetric preparation, a calibrated measuring device should still be used.
Single-Use and Reusable Formats
Reusable polypropylene and HDPE bottles are commonly used in research and quality-control laboratories where cleaning and sterilization procedures are routine. Single-use assemblies with integrated tubing ports and vent filters are frequently used in biotechnology and biopharmaceutical environments to reduce contamination risk and eliminate cleaning validation requirements.
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<h2 data-section-id="1jl751w" data-start="4098" data-end="4123">Specifications Context</h2>
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Large format laboratory bottles are typically manufactured from laboratory-grade resins under controlled quality systems and may meet standards such as USP Class VI and ISO 9001 certification requirements. Polypropylene bottles can generally tolerate both freezer storage and repeated autoclave sterilization, making them one of the most versatile options for laboratory use. As of 2026, autoclavable polypropylene large format bottles with wide-mouth closures remain the most commonly specified format for preparation and storage of media and buffer volumes greater than 2 L in research, pharmaceutical, biotechnology, and industrial laboratories.
When your lab starts thinking in liters instead of milliliters, these bottles become part of the backbone of daily work. <a href="https://mbpinc.net/contact-us">Connect with the MBP Team today</a> to find the perfect large format bottle for your laboratory&rsquo;s bulk demands.

Diamond® RealSeal™ Large Format HDPE Bottles Specifications

Diamond® RealSeal™ Large Format 4L Wide Mouth HDPE Bottles with Handles

The 7174000 by Globe Scientific is a Diamond® RealSeal™ 4-liter wide-mouth HDPE bottle with an integrated handle, 100 mm linerless PP cap, and a freeze rating to -100°C. Manufactured from medical-grade HDPE resin in an ISO 13485 and ISO 9001:2015 certified facility; USP Class VI, BPA-free, and phthalate-free. Sold 6 per case.

Bottle, Large Wide Mouth with Handle, Round, HDPE Bottle, 100mm PP Screw Cap, 4 Litres (1.0 Gallons), CS/6

Bottle, Large Wide Mouth with Handle, Square, HDPE Bottle, 100mm PP Screw Cap, 4 Litres (1.0 Gallons), CS/6

Flyer

Diamond® RealSeal™ Large Format Narrow Mouth LDPE Bottles

Globe Scientific 7072000 Diamond® RealSeal™ 2 L narrow-mouth LDPE bottle, linerless 38 mm PP screwcap with integrated seal ring and semi-buttressed threads. Freezer to –100°C. USP Class VI; BPA/phthalate-free; free of heavy metals; RoHS; FDA CFR-21. ISO 13485/9001 facility. 118 mm OD × 252 mm H. Case of 6.

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 2 Litres (0.5 Gallons), CS/6

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 4 Litres (1 Gallon), CS/6

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 8 Litres (2 Gallons), CS/6

BottDiamond® RealSeal™ Large Format Narrow Mouth PP Bottlesle Specifications

Diamond® RealSeal™ Large Format Narrow Mouth PP Bottles

Globe Scientific 7052000 Diamond® RealSeal™ 2 L narrow-mouth round PP bottle. Linerless 38 mm PP cap; neck ID 27 mm; 118 mm OD × 252 mm H (with cap). USP Class VI; FDA CFR-21; autoclavable at 121°C. ISO 9001/13485. BPA-free. Case of 6.

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 2 Litres (0.5 Gallons), CS/6

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 4 Litres (1 Gallon), CS/6

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 8 Litres (2 Gallons), CS/6

Diamond® RealSeal™ Amber Large Format Narrow Mouth PP Bottles Specifications

Diamond® RealSeal™ Large Format Narrow Mouth PP Bottles, Amber Color

7052000AM by Globe Scientific is a large-format narrow-mouth laboratory bottle molded from amber polypropylene to block UV light and protect light-sensitive contents. Available in 2L, 4L, and 8L sizes with leak-proof polypropylene screw caps rated for autoclaving at 121°C, these bottles deliver reliable containment for corrosive and photosensitive reagents across research, clinical, and industrial labs worldwide.

Bottle, Narrow Mouth, Amber PP Bottle, Attached PP Screw Cap, 2 Litres (0.5 Gallons), CS/6

Bottle, Narrow Mouth, Amber PP Bottle, Attached PP Screw Cap, 4 Litres (1 Gallon), CS/6

Bottle, Narrow Mouth, Amber PP Bottle, Attached PP Screw Cap, 8 Litres (2 Gallons), CS/6

Wide Mouth Bottles

<h2 data-section-id="dscteu" data-start="0" data-end="42">What Are Wide Mouth Laboratory Bottles?</h2>
&nbsp;
Wide-mouth laboratory bottles are storage containers designed with a broad neck opening, typically ranging from 38 mm to 63 mm in diameter, allowing easy filling, dispensing, and cleaning. Their large opening makes them ideal for handling powders, granules, viscous liquids, biological samples, and other materials that are difficult to transfer through narrow-neck containers. Globe Scientific Diamond RealSeal wide-mouth bottles are available in several materials, including HDPE, polypropylene (PP), LDPE, and PETG, each suited to different laboratory applications. HDPE bottles offer excellent chemical resistance and low-temperature performance, PP bottles provide autoclavability, LDPE bottles offer flexibility, and PETG bottles are commonly used for sterile media storage. For laboratories requiring maximum storage efficiency and sterilization capability, PP square wide-mouth bottles are often the preferred option because they are autoclavable and utilize shelf space more effectively than round bottles.
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<h2 dir="ltr">What you will find:</h2>
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Wide mouth bottles in multiple capacities (50 mL, 100 mL, 250 mL, 500 mL, 1 L, 2 L)
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HDPE wide mouth storage bottles for general laboratory use
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Polypropylene (PP) autoclavable bottles for sterile applications
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Clear wide mouth bottles for easy sample visibility
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Amber wide mouth bottles for light-sensitive reagents
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Graduated bottles for accurate volume measurement
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</ul>
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<h2 data-section-id="vq7xyo" data-start="1061" data-end="1096">How to Choose Wide Mouth Bottles</h2>
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Round vs. Square Design
Round wide-mouth bottles are the traditional laboratory format and fit easily into standard storage racks and holders. Their curved interior walls help reduce material retention during dispensing and cleaning. Square bottles maximize storage efficiency by reducing unused space between containers on shelves and inside refrigerators. They also provide flat surfaces for labels, making identification easier and improving label adhesion. Laboratories managing large inventories often favor square bottles for their superior space utilization.
Material and Temperature Requirements
HDPE wide-mouth bottles are suitable for general-purpose chemical, reagent, and sample storage. They offer broad chemical compatibility and can be used in low-temperature environments, including standard laboratory freezers and many ultra-low temperature applications. Polypropylene wide-mouth bottles are the preferred choice when sterilization is required, as they can be autoclaved at 121&deg;C without deformation. LDPE bottles provide flexibility and are useful when gentle squeezing or easy handling is beneficial, although they are not intended for autoclaving. PETG bottles combine excellent clarity with durability and are commonly selected for sterile media preparation and storage.
Amber Bottles for Light-Sensitive Materials
Amber wide-mouth bottles help protect photosensitive materials from UV and visible light exposure. They are commonly used for storing light-sensitive powders, chemicals, biological reagents, and pharmaceutical compounds. When long-term light protection is required, amber HDPE bottles provide an effective and economical storage solution.
Volume Selection
Smaller bottles in the 30&ndash;60 mL range are ideal for standards, reference materials, and small sample aliquots. Mid-size bottles between 125 mL and 500 mL are commonly used for working reagents, buffers, and routine laboratory materials. Larger bottles ranging from 1 L to 2 L are suitable for bulk powders, stock solutions, and frequently accessed laboratory reagents.
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<h2 data-section-id="1jl751w" data-start="3843" data-end="3868">Specifications Context</h2>
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Globe Scientific Diamond RealSeal HDPE and PP wide-mouth bottles are manufactured from virgin FDA-compliant resins and feature smooth interior surfaces and consistent wall thickness for reliable performance. The Diamond RealSeal closure system uses an integral-seal polypropylene cap that provides a secure, leak-resistant closure without requiring separate liners or gaskets. The Diamond Essentials line offers bulk-packaged HDPE bottles for high-volume laboratory operations where cost efficiency is important. As of 2026, 250 mL and 500 mL HDPE wide-mouth bottles remain among the most commonly used formats in research, pharmaceutical, academic, and industrial laboratories for reagent and sample storage. Explore narrow mouth bottles for liquid-focused applications and wash mouth bottles for controlled squeeze dispensing.
For product details, specifications, or bulk purchasing support, <a href="https://mbpinc.net/contact-us">the MBP team is ready to assist</a> with the right solution for your laboratory needs.

Diamond® RealSeal™ Large Format PP Bottles Specifications

Diamond® RealSeal™ Large Format Wide Mouth PP Bottles

Globe Scientific 7002000 Diamond® RealSeal™ 2 L wide-mouth round PP bottle. Linerless 100 mm PP cap; integrated seal ring; semi-buttressed threads. USP Class VI; FDA CFR-21; autoclavable −40°C to 121°C. 119 mm OD × 245 mm H (with cap). ISO 9001/13485. Case of 6.

Bottle, Wide Mouth, Large Format, PP Bottle, Attached PP Screw Cap, 2 Litres (0.5 Gallons), CS/6

Bottle, Large Wide Mouth with Handle, Round, PP Bottle, 100mm PP Screw Cap, 4 Litres (1.0 Gallons), CS/6

Bottle, Large Wide Mouth with Handle, Square, PP Bottle, 100mm PP Screw Cap, 4 Litres (1.0 Gallons), CS/6

Diamond® RealSeal™ Large Format Wide MouthLDPE & HDPE Bottles

7022000 by Globe Scientific: 2 L Diamond® RealSeal™ wide-mouth LDPE bottle with PP screw cap. Shatterproof, freezer-safe to −100°C. Wide opening for solids, powders, and viscous liquids. Part of the Diamond RealSeal line up to 8 L in LDPE and HDPE.

Capacity

Closure Size

Neck ID

Bottle OD

Height (w/ Cap)

Bottle, Wide Mouth, LDPE Bottle, Attached PP Screw Cap, 2 Litres (0.5 Gallons), CS/6

Bottle, Wide Mouth, HDPE Bottle, Attached PP Screw Cap, 2 Litres (0.5 Gallons), CS/6

Bottle, Wide Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 2 Litres (0.5 Gallons), CS/6

Narrow Mouth Bottles

<h2 data-section-id="6wvx9q" data-start="0" data-end="44">What Are Narrow Mouth Laboratory Bottles?</h2>
&nbsp;
Narrow-mouth laboratory bottles are storage containers designed with a small neck opening, typically between 18 mm and 38 mm in diameter. This design allows for controlled pouring, minimizes evaporation, reduces contamination risk, and helps limit vapor loss when storing volatile liquids. The most common narrow-mouth bottle style is the Boston round, which features a cylindrical body, rounded shoulders, and a threaded neck that provides excellent durability and efficient liquid handling. Globe Scientific Diamond RealSeal narrow-mouth bottles are available in HDPE, LDPE, and polypropylene (PP) materials, with capacities ranging from 4 mL to 8 L. Amber HDPE versions are also available for storing light-sensitive chemicals and reagents. For most laboratory applications, HDPE remains the preferred material due to its excellent chemical resistance and low extractables, while PP is selected when autoclaving is required.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
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Small narrow mouth bottles (30&ndash;100 mL) for reagents and aliquots
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Medium bottles (125&ndash;500 mL) for routine laboratory use
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Large bottles (1&ndash;2 L) for bulk solution storage
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HDPE narrow mouth bottles for chemical-resistant applications
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Polypropylene bottles for autoclave-compatible workflows
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Amber narrow mouth bottles for light-sensitive reagents
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Graduated bottles for easy volume monitoring
</li>
</ul>
&nbsp;
<h2 data-section-id="1xrkoag" data-start="975" data-end="1012">How to Choose Narrow Mouth Bottles</h2>
&nbsp;
Material Selection
HDPE is the standard choice for general laboratory reagent storage because it offers broad chemical compatibility, excellent durability, and resistance to low temperatures. LDPE provides similar chemical resistance but with greater flexibility, making small bottles easier to squeeze and pour. Polypropylene bottles are suitable for applications requiring sterilization, as they can withstand autoclaving at 121&deg;C. Amber HDPE bottles are recommended for photosensitive compounds because they reduce exposure to UV and visible light that may degrade sensitive materials.
Volume Requirements
Small-volume bottles from 4 mL to 30 mL are commonly used for standards, reference materials, working solutions, and sample transport. Medium-sized bottles ranging from 60 mL to 500 mL are ideal for routine laboratory reagents, buffers, and water samples. Larger formats from 1 L to 8 L are typically used for bulk reagent storage, field sampling, media preparation, and industrial laboratory applications where larger quantities of liquid must be stored safely.
Closure Compatibility
Closure size is an important consideration when selecting narrow-mouth bottles. Smaller bottles typically use 18 mm closures, medium bottles commonly use 24 mm or 28 mm closures, and larger bottles use 38 mm closures. Using the correct cap size ensures a proper seal and prevents leaks, evaporation, and thread damage caused by mismatched closures.
Diamond RealSeal vs. Diamond Essentials
Diamond RealSeal bottles are supplied with attached caps and are individually packaged to provide convenience and consistent quality. Diamond Essentials bottles are designed for high-volume users and are supplied in bulk packaging, with bottles and caps packaged separately. Laboratories processing large numbers of samples often choose the Diamond Essentials range to reduce packaging costs while maintaining the same bottle performance.
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<h2 data-section-id="1jl751w" data-start="3600" data-end="3625">Specifications Context</h2>
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Globe Scientific Diamond RealSeal narrow-mouth Boston round bottles are manufactured from virgin FDA-compliant resins and feature precision-molded construction with consistent wall thickness for reliable performance. The Diamond RealSeal polypropylene closure incorporates an integral sealing system that provides leak-resistant storage without the need for separate liners or gaskets. These bottles are widely used across pharmaceutical, environmental, clinical, food testing, cosmetics, water analysis, and industrial laboratories. As of 2026, 250 mL and 500 mL HDPE narrow-mouth Boston round bottles remain among the most commonly used formats for reagent storage, environmental sampling, and analytical laboratory applications.&nbsp;
<a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Connect with the MBP team today</a> to explore our full range of dimensions and material specifications, and find the perfect narrow-mouth bottle for your laboratory&rsquo;s daily demands.

Diamond RealSeal™ Bottle -  Brochure

Diamond® RealSeal™ Narrow Mouth HDPE Bottles Specifications

Diamond® RealSeal™ Narrow Mouth HDPE Bottles

7060030 by Globe Scientific is a 30 mL Diamond® RealSeal™ narrow mouth natural HDPE bottle (Boston round) with a 20 mm linerless PP cap. Rated −100 °C to 120 °C; USP Class VI and FDA-compliant. Series covers 30–1000 mL; cap thread scales from 20 mm to 38 mm. Choose amber variant 7060030AM for light-sensitive contents.

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, 30mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, 60mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, 125mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, 250mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, 500mL, 12/Pack, CS/48

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, 1000mL, 6/Pack, CS/24

Diamond® RealSeal™ Amber Narrow Mouth HDPE Bottles Specifications

Diamond® RealSeal™ Narrow Mouth HDPE Bottles, Amber Color

7060030AM by Globe Scientific is a 30 mL Diamond® RealSeal™ narrow mouth amber HDPE bottle (Boston round) with a 20 mm amber linerless PP cap. Amber pigment protects light-sensitive contents; rated −100 °C to 120 °C; US Pharmacopoeia and FDA-compliant. Series: 30–1000 mL. For light-sensitive powders or viscous liquids, use wide mouth amber 7010030AM.

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 30mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 60mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 125mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 250mL, 12/Pack, CS/72

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 500mL, 12/Pack, CS/48

Bottle, Narrow Mouth, HDPE Bottle, Attached PP Screw Cap, Amber, 1000mL, 6/Pack, CS/24

Diamond® RealSeal™ Narrow Mouth LDPE Bottles Specifications

Diamond® RealSeal™ Narrow Mouth LDPE Bottles

7070030 by Globe Scientific — Diamond® RealSeal™ Narrow Mouth LDPE Bottle (Boston Round), 30 mL, PP screwcap. USP Class VI medical-grade resin, flexible, impact resistant. 12/bag.

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 30mL, 12/Pack, CS/72

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 60mL , 12/Pack, CS/72

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 125mL, 12/Pack, CS/72

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 250mL, 12/Pack, CS/72

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 500mL, 12/Pack, CS/48

Bottle, Narrow Mouth, LDPE Bottle, Attached PP Screw Cap, 1000mL, 6/Pack, CS/24

Diamond® RealSeal™ Narrow Mouth PP Bottles Specifications

Diamond® RealSeal™ Narrow Mouth PP Bottles

Globe Scientific 7050030 Diamond® RealSeal™ narrow-mouth PP bottle, 30 mL. Attached PP screw cap with linerless leakproof seal. Temperature range –40°C to 121°C; autoclavable. Resistant to most corrosives. 12/pack.

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 30mL, 12/Pack, CS/72

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 60mL, 12/Pack, CS/72

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 125mL, 12/Pack, CS/72

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 250mL, 12/Pack, CS/72

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 500mL, 12/Pack, CS/48

Bottle, Narrow Mouth, PP Bottle, Attached PP Screw Cap, 1000mL, 6/Pack, CS/24

Square Bottles

<h2 data-section-id="ftwppm" data-start="0" data-end="46">What Are Square Laboratory Storage Bottles?</h2>
&nbsp;
Square laboratory storage bottles are flat-sided containers designed for the storage and handling of culture media, biological buffers, reagents, chemical solutions, and laboratory samples. Unlike traditional round bottles, square bottles maximize storage efficiency by reducing unused space on shelves, in refrigerators, and inside cold rooms. Their flat sides provide a larger surface area for labels, barcodes, and identification markings while also preventing bottles from rolling on laboratory benches. Square bottles are available in PETG, HDPE, and polypropylene materials, allowing laboratories to select the most appropriate option based on sterility requirements, chemical compatibility, temperature resistance, and sterilization needs.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
HDPE square bottles for chemical-resistant applications
</li>
<li dir="ltr" aria-level="1">
Narrow-mouth square bottles for controlled pouring
</li>
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Wide-mouth square bottles for easy filling and cleaning
</li>
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Graduated square bottles for volume tracking
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Leak-resistant screw-cap bottles for secure storage
</li>
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Amber square bottles for light-sensitive reagents
</li>
</ul>
&nbsp;
<h2 data-section-id="16vznuu" data-start="981" data-end="1023">How to Choose Square Laboratory Bottles</h2>
&nbsp;
Material Selection
PETG square bottles offer exceptional clarity, allowing easy visual inspection of contents while remaining BPA-free and highly impact resistant. They are commonly used for tissue culture media, biological buffers, and sterile laboratory solutions. HDPE square bottles provide excellent chemical resistance and are suitable for storing acids, bases, reagents, and other laboratory chemicals where transparency is not required. Polypropylene square bottles are ideal for applications requiring autoclave sterilization, as they can withstand repeated steam sterilization cycles at 121&deg;C without losing structural integrity.
Volume and Closure Compatibility
Square laboratory bottles are available in a wide range of capacities, typically from 125 mL to 4 L. Many models use GL45 threaded closures, which are compatible with common bottle-top filtration systems and laboratory accessories. Before purchasing replacement caps or filtration devices, it is important to verify the bottle thread specification to ensure compatibility.
Sterility Requirements
Sterile square PETG bottles are recommended for cell culture, media preparation, and biological applications where contamination must be avoided. These bottles are commonly gamma-irradiated and certified RNase-free, DNase-free, and non-pyrogenic. Non-sterile versions provide a cost-effective alternative for applications involving downstream filtration or sterilization before use.
Graduation Markings
Most square laboratory bottles feature molded or permanently marked graduations that allow quick volume estimation during filling and dispensing. Molded graduations are particularly durable because they resist fading, scratching, and chemical exposure throughout the bottle's service life. High-quality laboratory bottles typically provide graduation accuracy within approximately &plusmn;5%.
Large-Volume Applications
For storage requirements exceeding 2 L, larger square bottle formats and bulk liquid storage containers may offer a more practical solution. These larger containers are commonly used for media preparation, buffer storage, reagent stock solutions, and other high-volume laboratory applications.
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<h2 data-section-id="1jl751w" data-start="3773" data-end="3798">Specifications Context</h2>
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High-quality square laboratory bottles are typically manufactured using virgin laboratory-grade resins under controlled production conditions to ensure consistency and reliability. PETG bottles intended for biological applications are often produced in cleanroom environments and may meet USP Class VI requirements for biocompatibility. GL45 threaded closures remain the most widely used standard for laboratory media bottles and support compatibility with numerous bottle-top filtration systems and accessories. As of 2026, square PETG and polypropylene bottles continue to be widely used in research, clinical, pharmaceutical, and biotechnology laboratories because of their efficient storage footprint, durable construction, and ease of handling.
<a href="https://mbpinc.net/contact-us">Connect with the MBP team today</a> to explore our full range of volumes and find the best fit for you.

Diamond RealSeal™ Bottle - Brochure

Diamond® RealSeal™ Rectangular HDPE Bottle

7100125 by Globe Scientific is a 125mL wide-mouth rectangular HDPE laboratory bottle with a linerless polypropylene screw cap rated to -100°C. The rectangular footprint maximizes shelf and freezer space compared to round bottles of equivalent volume, making this format practical for high-density sample storage in labs handling large inventories of aliquots, reagents, or buffer stock.

Bottle, Rectangular, HDPE Bottle, 28mm PP Screw Cap, 125mL (4oz), 12/Pack, CS/72

Bottle, Rectangular, HDPE Bottle, 38mm PP Screw Cap, 250mL (8oz), 12/Pack, CS/72

Bottle, Rectangular, HDPE Bottle, 48mm PP Screw Cap, 500mL (16oz), 12/Pack, CS/48

Bottle, Rectangular, HDPE Bottle, 53mm PP Screw Cap, 1000mL (32oz), 6/Pack, CS/24

Bottle, Rectangular, Large Format, HDPE Bottle, 63mm PP Screw Cap, 2000mL (64oz), 4/Pack, CS/12

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