Tubes & Sample Collection

Narrow Mouth Bottles

<h2 data-section-id="6wvx9q" data-start="0" data-end="44">What Are Narrow Mouth Laboratory Bottles?</h2>
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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.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
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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
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</ul>
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<h2 data-section-id="1xrkoag" data-start="975" data-end="1012">How to Choose Narrow Mouth Bottles</h2>
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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.

Brochure

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.

Manufacture

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>
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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.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
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HDPE square bottles for chemical-resistant applications
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Narrow-mouth square bottles for controlled pouring
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Wide-mouth square bottles for easy filling and cleaning
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Graduated square bottles for volume tracking
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Leak-resistant screw-cap bottles for secure storage
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Amber square bottles for light-sensitive reagents
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</ul>
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<h2 data-section-id="16vznuu" data-start="981" data-end="1023">How to Choose Square Laboratory Bottles</h2>
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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

Flyer

Diamond® RealSeal™ Square HDPE Bottles Specifications

Diamond® RealSeal™ Square HDPE Bottles

7180060 by Globe Scientific — Diamond® RealSeal™ Square Wide Mouth HDPE Bottle, 60 mL, 25 mm PP closure with seal ring. USP Class VI, FDA 21 CFR, BPA/phthalate-free. 36×36 mm body, 84 mm height. Freezer safe to –100°C. 12/bag.

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

Bottle, Wide Mouth, Square, HDPE, Attached PP Screw Cap, 175mL, 12/Pack, CS/72

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

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

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

Diamond® RealSeal™ Square Amber HDPE Bottles Specifications

Diamond® RealSeal™ Square HDPE Bottles, Amber Color

7180060AM by Globe Scientific is a Diamond® RealSeal™ square HDPE bottle in amber — UV-protective, leak-proof RealSeal™ PP cap, −100°C rated, square footprint for storage efficiency, USP-compliant virgin resin. Ideal for light-sensitive reagents and cold-storage applications.

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

Bottle, Wide Mouth, Square, HDPE, Amber, Attached PP Screw Cap, 175mL, 12/Pack, CS/72

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

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

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

PETG Media Bottles

<h2 data-section-id="1sbi2c3" data-start="0" data-end="31">What Are PETG Media Bottles?</h2>
PETG media bottles are laboratory storage containers manufactured from polyethylene terephthalate glycol-modified (PETG) copolyester, a material known for combining glass-like optical clarity with excellent impact resistance. These bottles are widely used in cell culture, tissue culture, biopharmaceutical production, molecular biology, and general laboratory workflows for storing media, buffers, sera, reagents, and other biological solutions. Compared with standard PET, the glycol modification improves flexibility and durability while maintaining transparency, and the material is BPA-free. PETG media bottles provide a safer alternative to glass when breakage risks must be minimized while still allowing clear visual inspection of contents.
Choose PETG media bottles when you need crystal-clear visibility, BPA-free construction, freezer compatibility, and greater durability than glass.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
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Small PETG media bottles (30&ndash;125 mL) for aliquots and small reagent storage
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Medium bottles (250&ndash;500 mL) for routine media and buffer preparation
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Large PETG bottles (1 L&ndash;2 L) for bulk solution storage
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Square PETG bottles for space-efficient storage and stacking
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Round PETG bottles for general-purpose lab use
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Sterile PETG bottles for contamination-sensitive workflows
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Graduated PETG bottles for easy volume tracking
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</ul>
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<h2 data-section-id="15w1wg6" data-start="935" data-end="970">How to Choose PETG Media Bottles</h2>
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Sterility Requirements
Sterile PETG media bottles are recommended for tissue culture media, serum storage, biological reagents, and other applications where maintaining sterility is critical. These bottles are typically gamma-irradiated to a Sterility Assurance Level (SAL) of 10⁻⁶ and certified RNase-free and DNase-free. Non-sterile PETG bottles are suitable for workflows where solutions will be filter-sterilized before use or where sterility is not required during storage.
Volume and Bottle Format
PETG media bottles are commonly available in capacities ranging from 250 mL to 1000 mL, with some product lines extending from 30 mL up to 2000 mL. A 500 mL bottle is often the preferred choice for routine media preparation, buffer storage, and laboratory reagent handling. The 1000 mL format is commonly used for larger culture systems and bulk reagent storage. Round bottles are convenient for general laboratory use, while square bottles maximize refrigerator and shelf space by reducing unused gaps between containers.
Temperature Compatibility
Most PETG media bottles are designed for use between approximately &ndash;40&deg;C and +70&deg;C, making them suitable for refrigerated and freezer storage. They can safely be used in standard laboratory refrigerators and &ndash;20&deg;C freezers. PETG is not autoclavable and should not be exposed to steam sterilization temperatures of 121&deg;C. Applications requiring repeated autoclaving should use polypropylene or borosilicate glass bottles instead.
Vacuum Applications
Some PETG media bottles are designed to work with bottle-top filtration systems and vacuum-based filtration workflows. When using bottles under vacuum conditions, verify that the bottle is specifically rated for vacuum use and compatible with the required closure and filtration system. Not all PETG bottles are designed to withstand full vacuum pressure.
Closure Design
Most PETG media bottles are supplied with HDPE screw caps that provide a secure, leak-resistant seal. Many sterile versions include tamper-evident bands for additional assurance during shipping and storage. Some models also feature drip-free pouring designs that help reduce spills and improve liquid handling accuracy during dispensing.
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<h2 data-section-id="1jl751w" data-start="3773" data-end="3798">Specifications Context</h2>
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PETG media bottles used in laboratory and biopharmaceutical environments are commonly manufactured in ISO Class 8 cleanroom facilities and may meet USP Class VI requirements for biocompatibility and extractables testing. Sterile bottles are typically gamma-irradiated to achieve a Sterility Assurance Level of 10⁻⁶ and are supplied with lot-specific documentation covering sterility and quality control testing. As of 2026, PETG media bottles remain one of the most widely used alternatives to glass for cell culture media, buffer preparation, reagent storage, and bioprocessing applications due to their combination of clarity, durability, and ease of handling.
Don't let an inconsistent container be the weak link in your laboratory&rsquo;s workflow. <a href="https://mbpinc.net/contact-us">Connect with the MBP Team today</a>.

Diamond® RealSeal™ Square PETG Media Bottles Specifications

Diamond® RealSeal™ Square PETG Media Bottles

7610030 by Globe Scientific is a 30mL sterile square PETG media bottle gamma-sterilized to a sterility assurance level (SAL) of 10⁻⁶ in an ISO Class 8 cleanroom, sealed with a tamper-evident shrink band and a leak-proof white HDPE cap that withstands 95 kPa pressure. DNase-free, RNase-free, non-pyrogenic, non-cytotoxic, and FDA CFR-21 compliant, these bottles are ready for filling upon receipt in pharmaceutical, cell culture, and molecular biology media applications.

Bottle, Square Media, PETG with HDPE Closure, 30mL, STERILE with Tamper Evident Shrink Band, 24/Shrink Wrapped Tray, CS/96

Bottle, Square Media, PETG with HDPE Closure, 60mL, STERILE with Tamper Evident Shrink Band, 24/Shrink Wrapped Tray, CS/96

Bottle, Square Media, PETG with HDPE Closure, 125mL, STERILE with Tamper Evident Shrink Band, 24/Shrink Wrapped Tray, CS/48

Bottle, Square Media, PETG with HDPE Closure, 250mL, STERILE with Tamper Evident Shrink Band, 24/Shrink Wrapped Tray, CS/48

Bottle, Square Media, PETG with HDPE Closure, 500mL, STERILE with Tamper Evident Shrink Band, 12/Shrink Wrapped Tray, CS/24

Bottle, Square Media, PETG with HDPE Closure, 1000mL, STERILE with Tamper Evident Shrink Band, 12/Shrink Wrapped Tray, CS/24

Bottle, Square Media, PETG with HDPE Closure, 2000mL, STERILE with Tamper Evident Shrink Band, 6/Shrink Wrapped Tray, CS/12

Diamond® RealSeal™ Square PP Bottles Specifications

Diamond® RealSeal™ Square PP Bottles

7160060 by Globe Scientific is a 60mL wide-mouth square laboratory bottle precision-molded from polypropylene (PP) with a leak-proof PP screw cap. The square footprint maximizes shelf and freezer space efficiency compared to round bottles of the same volume. Rated from -40°C to 121°C and resistant to most corrosives, these bottles are autoclavable and suitable for sample collection, solid and liquid storage, and reagent dispensing.

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

Bottle, Wide Mouth, Square, PP, Attached PP Screw Cap, 175mL, 12/Pack, CS/72

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

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

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

Wide Mouth Bottles

<h2 data-section-id="dscteu" data-start="0" data-end="42">What Are Wide Mouth Laboratory Bottles?</h2>
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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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<ul>
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Wide mouth bottles in multiple capacities (50 mL, 100 mL, 250 mL, 500 mL, 1 L, 2 L)
</li>
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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
</li>
</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™ Wide Mouth HDPE Bottles Specifications

Diamond® RealSeal™ Wide Mouth HDPE Bottles

7010030 by Globe Scientific — Diamond® RealSeal™ Wide Mouth HDPE Bottle, 30 mL, linerless PP screwcap. USP Class VI, FDA 21 CFR, BPA/phthalate-free, RoHS compliant. Freezer safe to –100°C. 12/bag.

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

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

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

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

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

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

Diamond RealSeal™ Bottle -  Brochure

Diamond® RealSeal™ Wide Mouth HDPE Bottles, Amber Color

7010030AM by Globe Scientific is a 30 mL wide mouth amber HDPE bottle with a linerless amber PP RealSeal™ closure. Amber pigment reduces UV/visible light transmission; rated −100 °C to 120 °C; resistant to most corrosives. Supplied 12 per bag, 72 per case.

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

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

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

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

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

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

Diamond® RealSeal™ Wide Mouth LDPE Bottles

7020030 Diamond® RealSeal™ Wide Mouth LDPE Bottles are constructed from medical-grade LDPE resin with the RealSeal™ closure system, providing leak-free storage with superior clarity and flexibility compared to HDPE. Wide-mouth design for easy filling and dispensing. Available in multiple sizes.

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

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

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

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

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

Bottle, Wide Mouth, LDPE Bottle, Attached PP Screw Cap, 1000mL, 12/Pack, CS/24

Diamond® RealSeal™ Wide Mouth PP Bottles Specifications

Diamond® RealSeal™ Wide Mouth PP Bottles

7000030 by Globe Scientific is the Diamond® RealSeal™ Wide Mouth PP Bottle—precision-molded virgin polypropylene with a leakproof, linerless PP cap and integrated seal ring. Autoclavable at 121°C and rated from −40°C to 121°C, these bottles offer excellent chemical resistance and optical clarity for reagent storage, sample transport, and autoclaving applications. Available in 30 mL to 1000 mL volumes from MBP, a registered vendor for Howard Hughes Medical Institute, Vanderbilt University, MD Anderson Cancer Center, and many other institutes across the USA.

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

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

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

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

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

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

Funnels

<h2>What Are Laboratory Weighing Funnels?</h2>
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Laboratory weighing funnels are single-use antistatic polypropylene (PP) funnels specifically designed for the weighing-and-transfer step in analytical chemistry, pharmaceutical weighing, and sample preparation workflows. Unlike standard powder funnels, weighing funnels have one flat side that allows the funnel to rest stable on a balance pan during mass measurement, and a conical stem sized to the neck of a specific volumetric flask volume. After the sample mass is recorded, the funnel inserts directly into the flask neck, and the sample is transferred by tipping or rinsing&mdash;providing quantitative, loss-free transfer into narrow-neck vessels. Available in extra small (fits microtubes and 5&ndash;20 mL flasks) through extra-extra-large (fits 1000 mL+ vessels). Antistatic weighing funnels are single-use; washing removes the antistatic treatment. Reusable funnels needing autoclave sterilization should be standard polypropylene powder funnels, not antistatic weighing funnels.
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<h2>What you will find:</h2>
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<ul>
<li>Powder funnels with wide stems for smooth solid transfer</li>
<li>Long-stem funnels for controlled pouring into narrow containers</li>
<li>Short-stem funnels for faster liquid transfer</li>
<li>Filter funnels for use with standard filter paper</li>
<li>Chemical-resistant plastic funnels for lab compatibility</li>
<li>Disposable funnels for single-use workflows</li>
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<h2>How to Choose Laboratory Weighing Funnels</h2>
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Match Size to Flask Neck
The critical specification for a weighing funnel is the stem outer diameter relative to the flask neck inner diameter. Extra small fits 96-well microtubes and 5&ndash;20 mL volumetric flasks; small fits 20&ndash;50 mL; medium fits 50&ndash;200 mL; large fits 200&ndash;500 mL; extra large fits 500&ndash;1000 mL. A funnel that is too wide will not insert and will spill during transfer&mdash;when in doubt, choose one size smaller.
Disposable Antistatic vs. Reusable PP
For analytical weighing of fine powders, use disposable antistatic PP funnels&mdash;the antistatic surface dissipates charge that causes powder adhesion. For bulk transfer of coarse materials or liquids where static is not an issue, standard reusable polypropylene powder funnels (autoclavable at 121&deg;C, large-bore stem) are more economical and can be sterilized between uses.
Assorted vs. Individual Packs
Assorted packs covering extra small through extra large provide flexibility when flask sizes vary across experiments and reduce the number of individual SKUs to manage. Individual packs are more economical when only one funnel size is used at high volume.
Flat-Side Stability
All antistatic weighing funnels have one flat side on the funnel body. This flat face allows the funnel to rest stably on a balance pan without rolling during the weighing step before transfer&mdash;a design feature absent on standard laboratory funnels.
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<h2>Specifications Context</h2>
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Antistatic polypropylene weighing funnels achieve antistatic performance through a surface additive incorporated during molding; this is a surface treatment rather than a bulk polymer property. The flat side is designed to rest on a balance pan while keeping the stem vertical for direct transfer into volumetric flasks. As of 2026, these funnels are standard in pharmaceutical QC and analytical chemistry labs for gravimetric transfer workflows compliant with USP procedures. Explore weighing dishes and funnels category for related consumables.
Pick the size that fits your work&mdash;and everything else gets a lot easier.&nbsp;<a href="https://mbpinc.net/consumables/tubes-and-sample-collection/funnels" title="Contact the MBP Team">Contact the MBP Team</a> today.

8301-Group-Laboratory Essentials

Disposable Funnels Specifications

Disposable Funnels

8301 by Globe Scientific is a single-use transparent polystyrene funnel with a 55 mm top inner diameter, 60° taper angle, reinforced rim, and inside fluting — fits 11 cm filter papers. Height 69 mm, stem 25 mm × 4.3 mm opening. Ships 100 per box (25/sleeve × 4 sleeves). Polypropylene variant available as SKU 8303.