Consumables

Pipettors Accessories

<h2 dir="ltr"> What Are Pipettor Accessories?</h2>
 Pipettor accessories are complementary tools and parts that support correct storage, calibration, maintenance, and identification of laboratory pipettors. Pipettors stored lying flat on a benchtop risk contaminating the nose cone and suffer tip ejector wear; vertical stand storage is the manufacturer-recommended practice for all brands. At a minimum, every lab needs a pipette stand to prevent bench contamination and a calibration tool to verify ISO 8655 accuracy without sending instruments out.
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<h2 dir="ltr">What you will find:</h2>
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Pipette stands for secure pipettor storage
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Carousel pipette holders for easy multi-instrument access
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Pipettor calibration tools for accuracy checks
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Pipette tip racks and refill systems
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Pipette filter replacement accessories
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Pipettor cleaning and maintenance tools
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Pipette workstation organizers
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<h2 dir="ltr"> Key Pipettor Accessory Categories</h2>
 Pipette Stands and Carousel Racks Single-position vertical stands store one pipette upright, protecting the nose cone from surface contact. Six-position carousel stands rotate 360&deg; and hold 6 pipettors of mixed sizes &mdash; the standard for a molecular biology bench set covering P2, P10, P20, P200, P1000, and P5000. Universal-format carousels (Eppendorf, Gilson, Rainin, Biohit, Thermo) accommodate most standard pipette body diameters; manufacturer-specific stands provide a precision fit. Wall-mount holder systems save bench space in smaller workspaces. In-Lab Calibration Tools Gravimetric calibration of a pipettor requires only a calibrated analytical balance (0.0001 g resolution), distilled water, and a calibration tool specific to the pipettor model for adjusting the piston stop. Manufacturer calibration kits (e.g., Gilson Pipetman Calibration Kit, Eppendorf calibration tool) allow in-lab ISO 8655 verification without sending pipettors to an external service. ISO 17025-accredited external calibration services (Gilson, Eppendorf, Rainin) issue certified calibration reports for GLP and regulatory compliance. O-Ring and Seal Service Kits Worn O-rings and seals are the most common cause of pipettor inaccuracy and tip leakage after physical damage. Service kits specific to each pipettor model (Gilson PIPETMAN service kit, Eppendorf Research Plus service kit) include O-rings, seals, and small springs for routine preventive maintenance. Gilson recommends preventive maintenance every 1&ndash;2 years or whenever calibration verification fails. Colour-Coding Rings Colour-coded silicone rings clip onto pipette barrels for quick volume identification, user assignment, or pre/post-PCR segregation in shared labs. Eppendorf ColorTag rings are available in 12 colours and 6 sizes compatible with all Eppendorf pipette models; universal-format rings fit most major brands. Charger Stands for Electronic Pipettors Electronic pipettors (Eppendorf Research Pro, Rainin Pipet-Lite XLS+) require charger stands or base docks for overnight charging. Charger stands also serve as storage; the Eppendorf Charger Stand 2 holds and charges a single electronic model on the bench. 
<h2 dir="ltr"> Specifications Context</h2>
 Pipettor stands should be used per all major manufacturer guidelines &mdash; Eppendorf, Gilson, and Rainin all specify vertical storage as the correct position to prevent liquid ingress into the piston. ISO 8655 calibration requires distilled water at 20&deg;C, a balance with 0.0001 g resolution, and a minimum of 10 dispenses per volume setting. Eppendorf ColorTag rings are available in 6 sizes covering pipettes from 2 &micro;L to 5,000 &micro;L.&nbsp; Eppendorf, Gilson, and Rainin offer both in-lab calibration tools and ISO 17025-certified external calibration services.&nbsp; 
Is your workstation as organized as your research? Don&rsquo;t wait for a pipette to fall or a seal to fail. <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Connect with the MBP team</a> today to stock up on the essentials that keep your lab running like clockwork.

Pipettor Accessories

Pipette filler, rubber, 1 hand, glass ball valve, EA

PWY145 is a single-hand rubber pipette filler with a glass ball valve, sold individually (EA). Compatible with standard serological and Mohr-type glass and plastic pipettes. Simple squeeze-and-release operation for liquid aspiration and dispensing without an electric pipette controller.

3380-Group-Diamond Piettors Brochure

3380-Group-Diamond SeroLogic User Guide

Pipette, Diamond SeroLogic, Motorized Serological Pipette Controller, Rechargeable

Globe Scientific Diamond® SeroLogic™ rechargeable motorised serological pipette controller (SKU 3380) — 0.1 to 100 mL range, 3-speed quiet micro pump, up to 8 hours per charge, soft-grip buttons, autoclavable removable nose cone, and replaceable membrane filter. Compatible with glass and plastic serological pipettes. Lightweight ergonomic one-handed design.

Manufacture

Single Channel Pipettors

<h2 dir="ltr">What Are Single-Channel Pipettors?</h2>
 A single-channel pipettor is the single most widely used liquid handling instrument in molecular biology, cell biology, and clinical research. It transfers precise volumes between 0.1 &micro;L and 5,000 &micro;L, one well or tube at a time, using an air-displacement piston mechanism. The piston creates a partial vacuum that aspirates liquid into a disposable tip; advancing the piston fully dispenses the liquid. A spring-loaded tip ejector releases the used tip without hand contact for contamination control. Manual models depend on finger force and offer simple, battery-free operation; electronic models add programmable aspiration/dispensing speeds, multi-dispense modes, and up to 5 custom pipetting programs.&nbsp; A set of four manual single-channel pipettors (P10, P20, P200, P1000) covers 95% of molecular biology liquid handling; add electronic models for high-throughput repetitive work.
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<h2 dir="ltr">What you will find:</h2>
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Adjustable volume single-channel pipettors for flexible workflows
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Fixed volume pipettors for repeatable dispensing tasks
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Mechanical pipettors for standard lab use
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Ultra-low volume micropipettors for precise &micro;L handling
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Wide-range pipettors covering &micro;L to mL volumes
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Autoclavable pipettors for sterile environments
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Lightweight ergonomic pipettors for long sessions
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<h2 dir="ltr"> How to Choose a Single-Channel Pipettor</h2>
 Volume Range: Build a Complete Bench Set A standard four-pipettor bench set covers P10 (1&ndash;10 &micro;L), P20 (2&ndash;20 &micro;L), P200 (20&ndash;200 &micro;L), and P1000 (100&ndash;1,000 &micro;L). For sub-microliter work (sequencing, single-cell), add a P2 (0.2&ndash;2 &micro;L). For large-volume dispensing (media prep, column loading), add a P5000 (1,000&ndash;5,000 &micro;L). Avoid selecting a volume range that places your target dispense below 20% of the maximum &mdash; accuracy degrades at the low end of any range. Manual vs Electronic Manual single-channel pipettors (Eppendorf Research Plus, Gilson PIPETMAN Classic, Rainin Pipet-Lite XLS+) are the standard for routine lab work: field-calibratable, autoclavable, and requiring no power source. Electronic single-channel pipettors (Eppendorf Research Pro, Rainin Pipet-Lite XLS+ Electronic) add: programmable aspiration/dispense speed (5 speeds), multi-dispense (repeat pipetting) mode, mix mode, dilution mode, and backlight LCD volume display. Electronic models reduce hand fatigue in workflows exceeding 200&ndash;300 tip changes per day. Tip Compatibility Three tip systems cover the market: standard conical (universal fit &mdash; fits Eppendorf Research Plus, Gilson PIPETMAN, Rainin non-LTS, Thermo, Sartorius/BioHit); Rainin LTS cylindrical (requires LTS-specific tips &mdash; lower force insertion); Eppendorf epT.I.P.S. proprietary (tightest fit for Eppendorf instruments). Select the tip system that matches your pipettor purchase and existing tip inventory before committing to a brand. Autoclavability and Chemical Resistance Manual pipettors from Eppendorf, Gilson, and Rainin have fully autoclavable lower sections (121&deg;C, 15 psi, 15 min). Electronic pipettors have autoclavable nose cones only &mdash; the electronic module cannot be autoclaved. Calibration and Service All single-channel pipettors are factory-calibrated per ISO 8655. Field recalibration tools are available for Eppendorf, Gilson, and Rainin to perform in-lab gravimetric verification without external service. 
<h2 dir="ltr"> Specifications Context </h2>
 ISO 8655 Part 2 accuracy spec for a 200 &micro;L air-displacement pipettor: &plusmn;0.8 &micro;L systematic error, &le;0.3 &micro;L random error (Eppendorf Research Plus specification at 200 &micro;L). Most manual pipettors weigh 70&ndash;120 g; electronic models weigh 150&ndash;220 g. Operating temperature range: typically 15&ndash;40&deg;C. Eppendorf Research Plus, Gilson PIPETMAN Classic, and Rainin Pipet-Lite XLS+ LTS remain the three dominant single-channel pipettor platforms in North American research labs.&nbsp; 
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Ready to find your new favorite lab tool? Don&rsquo;t just settle for any grip&mdash;find the one that fits your hand and your science. <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Reach out to the MBP team</a> today for a customized quote.

Pipette, RV-Pette Repeat Volume  (Uses Dispenser Tips # 3900 - # 3908 Listed Below), EA

The RV-Pette Repeat Volume Pipette (Globe Scientific 3250) dispenses 29 discrete volumes from 1 µL to 5,000 µL, completing up to 48 steps per reservoir fill at intervals as fast as 1 second. A click-stop dial and on-body volume chart enable rapid volume selection, while the ergonomic top-mounted plunger reduces hand strain during extended dispensing. Ships with a certificate of calibration and a one-year warranty; compatible with Globe Scientific dispenser tips #3900–#3908.

Pipettor Racks for Diamond Pipettes

3310 by Globe Scientific (3310 series) are acrylic pipette stands for Diamond and Diamond Pro single-channel pipettors, available in 4-place (3310-4) and 6-place (3310-6) configurations. The upright vertical design keeps pipettors organized and tip-clean on the bench. Order via mbpinc.net/quickorder using catalog number 3310.

Pipette Stand, 4-Place, for Diamond Pipettes, Acrylic

Pipette Stand, 6-Place, for Diamond Pipettes, Acrylic

Plastic Beakers

<h2 data-section-id="174q2lb" data-start="139" data-end="167">What Are Plastic Beakers?</h2>
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Plastic beakers are shatterproof cylindrical laboratory vessels manufactured from polypropylene (PP) or polymethylpentene (PMP), designed for safe and lightweight liquid handling in environments where glass breakage is a concern. Polypropylene (PP) is the most commonly used material due to its strong chemical resistance to dilute acids, bases, alcohols, and most aqueous reagents, along with autoclavability at 121&deg;C and permanently molded graduations that do not fade with use. Polymethylpentene (PMP) offers higher optical clarity and better heat tolerance, making it suitable for applications requiring visual monitoring of solutions. Choose PP plastic beakers for routine buffer preparation, aqueous reagents, teaching labs, and field use; choose glass beakers when working with organic solvents, high temperatures above ~135&deg;C, or when maximum optical clarity is required.
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<h2 dir="ltr">What you will find:</h2>
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Options from 5mL for micro-work to 10,000mL for bulk prep.
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High-clarity polypropylene built for heavy reagent use.
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Options for Tri-corner beaker are also available.
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Molded-in graduations that never fade or rub off.
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Engineered for drip-free pouring and zero-waste transfers.
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Stock up with Case Packs or grab a single unit.
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<h2 data-section-id="149sszu" data-start="1054" data-end="1086">How to Choose Plastic Beakers</h2>
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Material: Polypropylene vs. Polymethylpentene
Polypropylene (PP) beakers are the standard choice in most laboratories because they are autoclavable at 121&deg;C, cost-effective, and resistant to a wide range of aqueous reagents including dilute acids and bases. They are typically translucent and designed for general-purpose laboratory workflows. Polymethylpentene (PMP) beakers, on the other hand, offer near-glass optical clarity (approximately 90% light transmission) and can tolerate higher temperatures up to around 175&deg;C, making them suitable for applications where visibility of the solution is important during mixing or heating.
Graduation Type: Molded-In
Plastic beakers at MBP feature molded-in graduations that are permanently embossed into the wall of the vessel. These markings remain legible even after repeated autoclaving, chemical exposure, and washing cycles, making them more durable than printed alternatives and ideal for long-term reuse.
Volume Range
MBP supplies plastic beakers in sizes ranging from 5 mL to 10,000 mL. Small-volume beakers (5&ndash;50 mL) are used for micro-scale reagent preparation, while mid-range sizes (250 mL&ndash;1,000 mL) are standard for routine buffer preparation. Large-capacity beakers (2,000&ndash;10,000 mL) are used for bulk reagent mixing, media preparation, and large-scale laboratory workflows.
Tri-Corner Beaker Option
Tri-corner (tri-pour) beakers are a specialized plastic format designed with three pour spouts for controlled dispensing and reduced dripping. These are commonly used in reagent distribution stations, waste handling, and workflows requiring frequent liquid transfer. They are typically made from polypropylene and complement standard round-form beakers.
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<h2 data-section-id="1jl751w" data-start="3281" data-end="3306">Specifications Context</h2>
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Polypropylene (PP) has a density of approximately 0.91 g/cm&sup3; and is chemically resistant to dilute acids (HCl, H₂SO₄), bases (NaOH, KOH), alcohols, and most aqueous buffers. However, it is not compatible with concentrated oxidizing acids (such as concentrated nitric or sulfuric acid) or halogenated organic solvents (such as chloroform, methylene chloride, or xylene). Molded graduations typically maintain an accuracy of &plusmn;5% of total capacity. PMP provides higher transparency and improved heat resistance compared to PP but is generally more expensive.
MBP stocks plastic beakers in a full range of sizes from 5 mL to 10,000 mL, including standard round-form and tri-corner designs for institutional laboratory use.
Upgrade to equipment that truly lasts the lab life. Look through our website and <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">contact the MBP team</a> for a quote to get lab supplies that won't let you down.

Laboratory Essentials

Pitchers with Molded Graduations

Globe Scientific 601156 500 mL translucent PP lab pitcher. Permanent molded graduations; molded-in handle with ergonomic thumb grip; no-drip pour spout. Autoclavable 121°C/20 min. Chemical resistant. Case of 60.

Beaker with Handle, PP, Molded Graduations, 500mL, CS/60

Beaker with Handle, PP, Molded Graduations, 500mL, EA

Beaker with Handle, PP, Molded Graduations, 1000mL, CS/48

Beaker with Handle, PP, Molded Graduations, 1000mL, EA

Beaker with Handle, PP, Molded Graduations, 2000mL, CS/36

Beaker with Handle, PP, Molded Graduations, 2000mL, EA

Beaker with Handle, PP, Molded Graduations, 3000mL, CS/27

Beaker with Handle, PP, Molded Graduations, 3000mL, EA

Beaker with Handle, PP, Molded Graduations, 5000mL, CS/12

Beaker with Handle, PP, Molded Graduations, 5000mL, EA

15ml & 50ml Centrifuge Tubes

<h2 data-section-id="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
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The All Centrifuge Tubes collection includes the complete range of tube sizes commonly used in research, clinical, and laboratory environments. These tubes range from small 0.5 mL and 1.5&ndash;2 mL microtubes used in microcentrifuge applications to 5 mL and 10 mL midi tubes for intermediate sample volumes, as well as 15 mL and 50 mL conical tubes designed for cell culture, density gradient preparation, and larger-volume sample processing. They are available in polypropylene (PP) for enhanced chemical resistance and temperature tolerance or polystyrene (PS) for improved optical clarity.
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What you will find:
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microcentrifuge-tubes" title="Microcentrifuge Tubes">Microcentrifuge Tubes</a> &ndash; Precision-engineered for small-volume sample preparation.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/screw-cap-tubes" title="Screw Cap Tubes">Screw Cap Tubes</a> &ndash; Secure, leak-proof closures for long-term storage and transport.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/15ml-and-50ml-centrifuge-tubes" title="15ml &amp; 50ml Centrifuge Tubes">15ml &amp; 50ml Centrifuge Tubes</a> &ndash; Standard conical bottom tubes for large-volume processing.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/midicentrifuge-tubes-5ml-and-10ml" title="Midicentrifuge Tubes (5ml &amp; 10ml)">Midicentrifuge Tubes (5ml &amp; 10ml)</a> &ndash; The perfect bridge for intermediate sample sizes.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microtubes-box" title="Microtubes Box">Microtubes Box</a> &ndash; Durable storage racks for organized sample management and protection.
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<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
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Volume and Rotor Compatibility
Selecting the correct tube size is essential for safe and efficient centrifugation. Microtubes ranging from 0.5&ndash;2 mL are designed for microcentrifuges, while 5&ndash;10 mL midi tubes fit compatible benchtop centrifuge rotors. Larger 15 mL and 50 mL conical tubes are commonly used in clinical and research centrifuges. Always verify rotor compatibility before introducing a new tube format into your workflow.
Sterility Requirements
For sensitive applications such as RNA extraction, cell culture, and clinical diagnostics, sterile tubes certified free of RNase, DNase, and pyrogens are recommended. Non-sterile tubes can provide a cost-effective solution for routine DNA analysis, protein assays, and general sample storage where sterility is not critical.
Material Selection
Polypropylene tubes offer excellent durability, can be autoclaved at 121 &deg;C, and resist many laboratory chemicals and solvents. Polystyrene tubes provide superior transparency, making it easier to monitor liquid levels and sample contents, although they are less resistant to heat and solvents.
Packaging and Inventory Planning
Microtubes are commonly available in pack sizes ranging from 500 to 1,000 units, while 15 mL and 50 mL conical tubes are often supplied in cases of 500. Laboratories with consistent usage may benefit from establishing recurring purchase orders to ensure uninterrupted supply.
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<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
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Microtubes (0.5&ndash;2 mL) are primarily used for PCR preparation, microcentrifuge applications, and storage of small sample volumes. These are typically manufactured from polypropylene and are available in pack sizes of 500&ndash;1,000 units.
Midi tubes (5&ndash;10 mL) support intermediate-volume centrifugation and supernatant collection. They are commonly made from polypropylene and supplied in packs ranging from 100&ndash;500 units.
15 mL conical tubes are widely used for cell pelleting, RNA isolation, and clinical sample processing. They are available in both polypropylene and polystyrene formats and are generally packaged in cases of 500.
50 mL conical tubes are designed for larger-volume workflows, including tissue culture, density gradient preparation, and sample processing. Like 15 mL tubes, they are available in polypropylene and polystyrene and are commonly sold in cases of 500.
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<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
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Globe Scientific and Nest Scientific centrifuge tubes are manufactured from USP Class VI virgin polypropylene or polystyrene resin and are certified free from detectable RNase, DNase, and pyrogens. Sterile products are irradiated using gamma or E-beam methods to achieve a sterility assurance level (SAL) of 10⁻⁶. MBP offers both racked and bagged formats for 15 mL and 50 mL conical tubes, along with dispenser-box options for selected microtube product lines that support efficient use in high-throughput laboratory environments.
For procurement teams, MBP accepts purchase orders and offers institutional pricing for bulk and high-volume purchases. <a href="https://mbpinc.net/contact-ushttps://mbpinc.net/contact-us" title="Contact the MBP team" style="color: #236fa1;">Contact the MBP team</a> today to learn more

All Centrifuge Tubes

Tubes, Caps & Racks Catalog

TDS-112010

6260-Group-TDS-112040

Plain Top Centrifuge Tubes

6260 by Globe Scientific is a 15 mL plain-top polystyrene centrifuge tube, 16 × 120 mm, with molded graduations from 0.5–15 mL in 0.5 mL increments. No cap included — fits standard 16 mm stoppers and snap caps. Available in bulk-box and dispenser-box packaging; PP variant also available. Order from MBP, a registered vendor to Howard Hughes Medical Institute, Vanderbilt University, MD Anderson Cancer Center, Eurofins, and many other institutes across the USA.

Centrifuge Tube, 15mL, PS, Molded Graduations, 250/Bag, 4 Bags/Unit, CS/1000

Centrifuge Tube, 15mL, PS, Molded Graduations, 250/Bag, BAG/250

Centrifuge Tube, 15mL, PS, Molded Graduations, 100/Dispenser Box, 10 Boxes/Unit, CS/1000

Centrifuge Tube, 15mL, PS, Molded Graduations, 100/Dispenser Box, BOX/100

Centrifuge Tube, 15mL, PP, Molded Graduations, 250/Bag, 4 Bags/Unit, CS/1000

Centrifuge Tube, 15mL, PP, Molded Graduations, 250/Bag, BAG/250

Centrifuge Tube, 15mL, PS, Molded Graduations, with Separate Natural Plug Cap, CS/1000

Centrifuge Tube, 15mL, PP, Molded Graduations, 100/Dispenser Box, 10 Boxes/Unit, CS/1000

Centrifuge Tube, 15mL, PP, Molded Graduations, 100/Dispenser Box, BOX/100

Centrifuge Tubes

<h2>What Are Centrifuge Tubes?</h2>
 Centrifuge tubes are cylindrical laboratory containers with caps that are used to separate, pellet, and store biological or chemical samples through centrifugal force. They are commonly made from polypropylene (PP) or polystyrene (PS) and are available in sizes ranging from small 0.5 mL microtubes to larger 50 mL conical tubes. These tubes are widely used for cell pelleting, protein precipitation, DNA and RNA extraction, tissue homogenate clarification, and long-term sample storage. Depending on the material, they can withstand temperatures from &minus;80 &deg;C to +121 &deg;C.
In short, the best centrifuge tube depends on your centrifuge rotor, required g-force, sample volume, and sterility needs. 
<h2>What You Will Find: </h2>
<ul>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes" title="All Centrifuge Tubes">All Centrifuge Tubes</a>: Comprehensive selection of 15 mL and 50 mL conical tubes with clear graduations for daily lab workflows.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/oak-ridge-style-centrifuge-tubes" title="Oak Ridge Style Centrifuge Tubes">Oak Ridge Style Centrifuge Tubes</a>: High-speed, chemical-resistant tubes designed to withstand extreme RCF without deformation.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/centrifuge-bottles" title="Centrifuge Bottles">Centrifuge Bottles</a>: Heavy-duty, larger-capacity vessels engineered for bulk sample processing and high-velocity runs.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes" title="Large Volume Centrifuge Tubes">Large Volume Centrifuge Tubes</a>: Industrial-strength 250 mL and 500 mL tubes optimized for pilot-scale harvesting and bioprocessing.</li>
</ul>
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<h2>How to Choose Centrifuge Tubes</h2>
 Volume and Rotor Compatibility
Select a tube size that matches both your sample volume and centrifuge rotor. Microtubes ranging from 0.5&ndash;2 mL are commonly used in microcentrifuges and can typically handle speeds up to 20,000 &times; g. Midi tubes in the 5&ndash;10 mL range are suitable for intermediate sample volumes, while 15 mL and 50 mL conical tubes are commonly used in clinical, research, and preparative centrifuges.
Material: Polypropylene vs. Polystyrene
Polypropylene (PP) tubes offer excellent chemical resistance and can tolerate temperatures from &minus;80 &deg;C to +121 &deg;C. They are suitable for autoclaving and exposure to many laboratory solvents. Polystyrene (PS) tubes provide superior optical clarity, making it easier to visually inspect samples and liquid levels, but they have lower resistance to solvents and extreme temperatures.
Sterility and Contamination Control
Sterile centrifuge tubes are typically gamma- or E-beam-irradiated and certified free of RNase, DNase, and pyrogens. These tubes are recommended for RNA extraction, cell culture, and clinical applications where contamination must be minimized. Non-sterile tubes may still be RNase- and DNase-free and are often suitable for routine DNA work and general sample storage.
Cap Design
Attached screw caps help prevent cap mix-ups and sample contamination, especially in high-throughput laboratories. Separate caps can be quicker to open and may be preferred in workflows that require frequent access to samples. If tubes will be used with automated systems, cap dimensions should be verified for compatibility with liquid handling equipment.
Packaging Options
Racked tubes provide convenient organization and allow direct pipetting while the tubes remain in the rack. Bulk-bagged tubes offer a more economical option for laboratories that process large volumes of samples and already have tube storage systems in place.
<h2> Comparing Common Centrifuge Tube Types</h2>
 Microtubes (0.5&ndash;2 mL) are ideal for PCR preparation, microcentrifuge applications, and storage of small sample volumes. They can generally withstand centrifugal forces up to 20,000 &times; g.
Midi tubes (5&ndash;10 mL) are designed for intermediate sample volumes such as culture supernatants and can typically tolerate forces up to 16,000 &times; g.
Sterile 15 mL conical tubes are frequently used for cell pelleting, RNA extraction, and clinical sample processing, with typical ratings between 12,000 and 15,000 &times; g.
Sterile 50 mL conical tubes are commonly selected for larger-volume applications including tissue culture work, density gradient preparation, and large-scale sample processing.
Polystyrene conical tubes in 15 mL and 50 mL formats are often chosen when visual sample inspection is important and solvent exposure is minimal.
<h2> Specifications and Features</h2>
 Polypropylene centrifuge tubes from Globe Scientific and Nest Scientific are manufactured from USP Class VI virgin resin and do not contain plasticizers or processing additives. Sterile products are typically irradiated to achieve a sterility assurance level (SAL) of 10⁻⁶. Most 15 mL tubes feature graduation marks at 1 mL intervals, while 50 mL tubes are usually graduated every 5 mL. MBP offers both bagged and racked centrifuge tube formats, including 15 mL and 50 mL conical tubes as well as smaller microtube and midi tube options.
MBP supports procurement departments by accepting purchase orders and offering institutional pricing for qualified high-volume customers. <a href="https://mbpinc.net/contact-us">Contact the MBP team today</a> for a customized quote.

Plain Top Graduated Centrifuge Tubes

Globe Scientific 112010 plain-top PS centrifuge tube, 12 mL. Graduated at 0.5, 1, 2.5, 5, and 10 mL. Non-flared rim; cap sold separately.

Centrifuge Tube, 16 x 100mm (12mL), PS, with Separate White Plug Cap, CS/2000

Centrifuge Tube, 16 x 100mm (12mL), PS, 500/Bag, CS/500

Centrifuge Tube, 16 x 100mm (12mL), PP, 500/Bag, 4 Bags/Unit

Centrifuge Tube, 16 x 100mm (12mL), PP, 500/Bag

Test Tubes

<h2 dir="ltr">What are Test Tubes?</h2>
 Test tubes for laboratory use are open-ended, cylindrical glass or plastic tubes used to hold, mix, incubate, and heat liquid and solid samples across a broad range of applications: bacteriological culture, tissue culture, clinical chemistry, serological assays, immunology, and general sample processing. Choose borosilicate glass for reusable, high-temperature, or chemically demanding applications; choose polystyrene disposable 12&times;75 mm tubes for flow cytometry and colorimetric assays; choose polypropylene capped tubes for microbial culture with anaerobic or gas-generating organisms.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" aria-level="1">Glass test tubes in diverse formats for heating and chemical reaction workflows</li>
<li dir="ltr" aria-level="1">
Plastic polypropylene test tubes for routine laboratory use
</li>
<li dir="ltr" aria-level="1">
Graduated tubes for quick and easy volume estimation
</li>
<li dir="ltr" aria-level="1">
Conical and round-bottom tube formats for different applications
</li>
<li dir="ltr" aria-level="1">
Sterile disposable test tubes for clinical and diagnostic work
</li>
<li dir="ltr" aria-level="1">
Heat-resistant tubes for incubation and controlled heating steps
</li>
</ul>
&nbsp;
<h2 dir="ltr">How to Choose Test Tubes</h2>
 Material: Glass vs. Polypropylene vs. Polystyrene Borosilicate glass 3.3 (ASTM E438 Type I, Class B) test tubes withstand direct flame, autoclave sterilization at 121 &deg;C, and most solvents, acids, and bases. They are reusable and autoclavable, making them cost-effective over high-volume laboratory runs. Polystyrene (PS) disposable tubes offer outstanding optical clarity for flow cytometry (FACS), cell counting, and OD-based colorimetric assays, but cannot be autoclaved and should not be used with aromatic solvents or strong acids. Polypropylene (PP) tubes are chemically resistant, autoclavable, and available with screw caps for anaerobic culture or gas-generating reactions. Rimmed vs. Rimless Rimless test tubes (fire-polished ends) allow easier insertion of rubber or silicone stoppers and are preferred for plugging with cotton wool for microbial culture. Rimmed tubes have a flared lip that facilitates pouring and is compatible with spring-metal tube closures. Confirm your closure type before ordering in bulk. Size and Volume The most common test tube dimensions in clinical and research labs: 12&times;75 mm: ~5 mL capacity; standard for flow cytometry, FACS, serology 13&times;100 mm: ~10 mL; general culture and chemistry 16&times;100 mm: ~14 mL; culture and chemistry 16&times;125 mm: ~17 mL; microbiological culture 18&times;150 mm: ~25 mL; larger-volume digests and culture Wall thickness of 1.2 mm (light wall, borosilicate 3.3) is the standard for general lab use; heavy-wall versions are used for digestions and applications involving vacuum or pressure. Sterile vs. Non-Sterile Sterile borosilicate glass culture tubes (individually wrapped or bulk-sterilized) are required for microbial culture, cell culture, and any application where contamination would invalidate the result. Non-sterile tubes are adequate for chemistry, spectroscopy, and other abiotic applications. Disposable PS tubes from Corning (PYREX&trade;) and Globe Scientific are supplied sterile or non-sterile; confirm the specification on the lot certificate. 
<h2 dir="ltr"> Specifications Context</h2>
 Borosilicate glass 3.3 test tubes have a linear thermal expansion coefficient of 3.3 &times; 10⁻⁶ K⁻&sup1;, providing resistance to thermal shock from room temperature to 300 &deg;C (direct flame) and from 0 to 121 &deg;C (autoclave cycles). Light-wall tubes (1.2 mm uniform wall thickness) provide the standard for general laboratory use; heavy-wall variants (2.0 mm) are used for digestion vessels and pressurized applications. Corning PYREX&trade; disposable round-bottom rimless glass tubes for tissue culture conform to ASTM standards and are the reference format for bacteriological serology and cell wash procedures. MBP supplies Globe Scientific and NEST Scientific test tube lines for research and clinical labs across the USA, Canada, and worldwide. &nbsp; 
If you&rsquo;re choosing between glass and plastic or trying to match the right size to your workflow, it&rsquo;s worth getting that part right early &mdash; it makes everything downstream smoother and a lot less messy. <a href="https://mbpinc.net/contact-us">Contact the MBP team now!</a>

110158-Group-Tubes, Caps & Racks Catalog

Plastic Tubes with Dual Position Snap Cap

Globe Scientific 110158 — sterile 17×100 mm culture tube with attached dual-position LDPE snap cap. Loose position allows aerobic gas exchange; sealed position closes for anaerobic culture or transport. Available in polystyrene (1,500 RPM max) or polypropylene (3,000 RPM, autoclavable, freezable). Pack of 25 per bag, 500 per case.

Culture Tube, 17 x 100mm (15mL), PS, STERILE, Attached Dual Position Cap, 25/Bag, 20 Bags/Unit, CS/500

Culture Tube, 17 x 100mm (15mL), PP, STERILE, Attached Dual Position Cap, 25/Bag, 20 Bags/Unit, CS/500

Lab Supplies for Physicians Offices

Plug Caps for Test Tubes

116132 by Globe Scientific is a 16 mm high-grip white polyethylene (PE) plug cap for test tubes. The friction-fit design enables quick batch capping of 16 mm glass or plastic test tubes; available in multiple sizes (11 mm–17 mm) and colors for sample color-coding from MBP.

Cap, Plug, 16mm, High Grip, White, BAG/1000

Cap, Plug, 16mm, White, 1000/Bag, CS/10000

Cap, Plug, 16mm, Blue, 1000/Bag, CS/10000

Cap, Plug, 16mm, Green, 1000/Bag, CS/10000

Cap, Plug, 16mm, Red, 1000/Bag, CS/10000

Cap, Plug, 16mm, Yellow, 1000/Bag, CS/10000

Cap, Plug, 12mm, Blue, CS/20000

Cap, Plug, 12mm, Clear, CS/20000

Cap, Plug, 12mm, Green, CS/20000

Cap, Plug, 12mm, Lavender, CS/20000

Cap, Plug, 12mm, Orange, CS/20000

Cap, Plug, 12mm, Red, CS/20000

Cap, Plug, 12mm, White, CS/20000

Cap, Plug, 12mm, Yellow, CS/20000

Cap, Plug, 11mm, Natural, BAG/1000

Plug Stoppers - For 12mm Tubes

Globe Scientific's polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification. \n\nDescription: Cap, Snap, 10mm, PE, for Vacuum and Test Tubes, CS/10000\n\n

Blue

Clear

Green

Lavender

Yellow

Storage Bottles

<h2 data-section-id="1nhmff" data-start="0" data-end="39">What Are Laboratory Storage Bottles?</h2>
&nbsp;
Laboratory storage bottles are precision-molded plastic vessels used to store, transport, and dispense liquid and solid reagents, solvents, buffers, and samples across a wide range of laboratory workflows. Globe Scientific's Diamond RealSeal bottle range includes wash mouth bottles, wide mouth bottles, and narrow mouth bottles. Wash mouth bottles are flexible LDPE squeeze bottles available in 250&ndash;1000 mL sizes for glassware rinsing and solvent dispensing. Wide mouth bottles, available in HDPE and PP from 30 mL to 2 L, are designed for powders, viscous liquids, and bulk sample storage. Narrow mouth bottles, including Boston round styles in HDPE, LDPE, and PP, range from 4 mL to 8 L and are used for liquid reagents, sampling, and chemical storage. All Diamond RealSeal bottles are manufactured from virgin FDA 21 CFR-compliant resins and feature PP integral-seal closures that provide leak-proof performance without separate liners or gaskets. LDPE is best suited for squeeze-action wash bottles, HDPE is the standard choice for general liquid storage, and PP should be selected whenever autoclave sterilization is required.
&nbsp;
<h2 dir="ltr">What you will find: </h2>
<ul>
<li data-start="0" data-end="100"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/large-format-bottles" title="Large Format Bottles:">Large Format Bottles:</a> High-capacity bottles for storing and handling large volumes of liquids.</li>
<li data-start="102" data-end="186"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/square-bottles" title="Square Bottles:">Square Bottles:</a> Space-efficient bottles designed to maximize storage capacity.</li>
<li data-start="188" data-end="280"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/wide-mouth-bottles" title="Wide Mouth Bottles:">Wide Mouth Bottles:</a> Bottles with large openings for easy filling and sample retrieval.</li>
<li data-start="282" data-end="375"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/wash-mouth-bottles" title="Wash Mouth Bottles:">Wash Mouth Bottles:</a> Squeeze bottles for controlled dispensing and rinsing applications.</li>
<li data-start="377" data-end="468"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/vacuum-bottles" title="Vacuum Bottles:">Vacuum Bottles:</a> Durable bottles designed for vacuum filtration and sample collection.</li>
<li data-start="470" data-end="565"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/narrow-mouth-bottles" title="Narrow Mouth Bottles:">Narrow Mouth Bottles:</a> Bottles with reduced openings to minimize spills and contamination.</li>
<li data-start="567" data-end="667"><a href="https://mbpinc.net/consumables/storage-supplies/storage-bottles/petg-media-bottles" title="PETG Media Bottles:">PETG Media Bottles:</a> Clear, durable bottles for storing media, buffers, and laboratory solutions.</li>
</ul>
&nbsp;
<h2 data-section-id="e7a0da" data-start="1174" data-end="1217">How to Choose Laboratory Storage Bottles</h2>
&nbsp;
Mouth Size: Wash, Wide, or Narrow
Wash mouth bottles feature integrated dispensing nozzles or draw tubes that allow controlled squeeze-action delivery and are primarily used for rinsing and dispensing liquids rather than long-term storage. Wide mouth bottles, with openings typically greater than 38 mm, allow easy filling and dispensing of powders, granules, viscous liquids, and larger samples. Narrow mouth bottles, including Boston round designs, provide controlled pouring, reduced evaporation, and secure storage for liquid reagents and solvents.
Material Match
LDPE is the preferred material for wash bottles because of its flexibility and squeeze performance. HDPE provides broad chemical resistance, low leachables, and a temperature range suitable for most laboratory chemicals and reagents, making it the standard choice for general storage. PP is selected when bottles must withstand autoclave sterilization at 121&deg;C or be used for media preparation and sterile workflows. Amber HDPE and amber PP bottles are recommended for light-sensitive compounds that require protection from UV and visible light exposure.
Volume
Small bottles ranging from 4&ndash;30 mL are commonly used for reference standards, analytical reagents, and sample collection. Mid-range bottles from 60&ndash;500 mL are suitable for daily-use reagents, calibration standards, and working solutions. Larger bottles from 1&ndash;8 L are typically used for bulk reagent storage, media preparation, and buffer stock solutions.
Closure Type
Diamond RealSeal PP closures incorporate an integral seal ring that creates a leak-proof closure without requiring separate liners or gaskets. Standard PP screw caps are used throughout the Diamond Essentials economy line. For autoclavable PP bottles, caps should be loosened during sterilization and tightened after cooling to maintain proper sealing performance.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3910" data-end="3935">Specifications Context</h2>
&nbsp;
Globe Scientific Diamond RealSeal bottles are precision-molded from virgin resins compliant with FDA 21 CFR 177.1520 requirements and are manufactured under ISO 9001:2015 quality systems. The Diamond Essentials range is supplied as a bulk-packed economy option, with bottles and caps packaged separately for high-volume laboratory use. As of 2026, 500 mL HDPE narrow-mouth Boston round bottles and 500 mL LDPE wash bottles remain among the most commonly stocked formats in academic research laboratories, pharmaceutical QC facilities, and industrial testing environments. Explore wash mouth bottles, wide mouth bottles, and narrow mouth bottles for specific bottle styles and applications.
For selecting the right size or material, <a href="https://mbpinc.net/contact-us">the MBP team can help</a> match bottles to your specific workflow needs.

DataSheet

Polystyrene Storage Bottles (Sterile)

Polystyrene Storage Bottles, Neck Size 45 mm, Sterile

346021 by NEST Scientific is a 150 mL sterile polystyrene storage bottle with a 45 mm neck and sterile polyethylene screw cap, e-beam sterilized to SAL 10⁻⁶, and certified DNase-free, RNase-free, and non-pyrogenic. Supplied 1 per individually wrapped sterile pack, 24 per case. Suitable for tissue culture media, biological buffers, and use as a receiving bottle with 45 mm vacuum filter units.

Manufacturer

150 mL Polystyrene Storage Bottles, Neck Size 45 mm, Sterile, 1/pk, 24/cs

250 mL Polystyrene Storage Bottles, Neck Size 45 mm, Sterile, 1/pk, 24/cs

500 mL Polystyrene Storage Bottles, Neck Size 45 mm, Sterile, 1/pk, 24/cs

1000 mL Polystyrene Storage Bottles, Neck Size 45 mm, Sterile, 1/pk, 12/cs

Weighing Dishes & Boats

<h2 data-section-id="4vlupf" data-start="410" data-end="461">What Are Laboratory Weighing Dishes and Funnels?</h2>
&nbsp;
Laboratory weighing dishes and funnels are disposable antistatic consumables used in gravimetric sample preparation&mdash;where solid or liquid materials are weighed on analytical or top-loading balances before being transferred into reaction vessels, volumetric flasks, or tubes. Weighing dishes (also called weigh boats or pour boats) are flat-bottomed antistatic polystyrene containers used to hold samples on the balance pan during weighing. Weighing funnels are antistatic polypropylene tools with one flat side for stability on the balance and a conical stem designed to fit flask necks, allowing complete quantitative transfer of material with minimal loss. Globe Scientific offers antistatic PS weighing dishes in square, hexagonal, and pour-boat formats ranging from 10 mL to 350 mL, and antistatic PP weighing funnels in extra-small through extra-extra-large sizes. Both are single-use only because washing removes antistatic properties and affects weighing accuracy.
&nbsp;
<h2 data-path-to-node="15">What you will find:</h2>
&nbsp;
<ul data-path-to-node="16">
<li>
<a href="https://mbpinc.net/consumables/weighing-dishes-and-funnels/weighing-dishes" title="Weighing Dishes" style="color: #236fa1;">Weighing Dishes</a>: The Precision Interface &ndash; In the journey from balance to vessel, every milligram counts. Our dishes are the specialized bridges that ensure your "calculated mass" actually reaches the reaction.
</li>
<li>
<a href="https://mbpinc.net/consumables/weighing-dishes-and-funnels/funnels" title="Funnels" style="color: #236fa1; text-decoration: underline;">Funnels</a>: High-Flow Transfer Logic &ndash; Stop the "glugging" and the spills. Our funnels are engineered to handle the physics of fluid and powder movement for a seamless bench workflow.
</li>
</ul>
&nbsp;
<h2 data-section-id="1yz3s79" data-start="1436" data-end="1480">How to Choose Weighing Dishes and Funnels</h2>
&nbsp;
Weighing Dish Shape
Square weigh boats are used for routine laboratory weighing and are designed with sloping sides and recessed corners to minimize sample loss during transfer. Hexagonal weigh boats provide better stability on balance pans due to their molded edges and also offer improved grip during handling, making them suitable for workflows where stability matters. Pour-boat designs include a built-in spout that allows controlled and accurate dispensing of liquids or viscous samples into receiving vessels without spillage.
Weighing Dish Capacity
Small 10&ndash;20 mL dishes are used for micro-scale weighing of reagents typically under 2 g on analytical balances. Medium 50&ndash;100 mL dishes are used for routine laboratory weighing of 2&ndash;20 g samples. Large 200&ndash;350 mL dishes are used for bulk powders and higher-volume transfers on top-loading balances.
Weighing Funnel Size
Extra-small funnels are used for 5&ndash;20 mL vessels and microtubes, small funnels for 20&ndash;50 mL, medium funnels for 50&ndash;200 mL, large funnels for 200&ndash;500 mL, and extra-large funnels for 500&ndash;1000 mL flasks. The flat side ensures stable placement on the balance pan during weighing before transfer.
Color: White vs. Black
White dishes provide high contrast for dark or strongly colored samples, making them easier to visualize during transfer. Black dishes are used for light-colored or transparent samples where residue visibility is important, especially when confirming complete sample recovery.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3653" data-end="3678">Specifications Context</h2>
&nbsp;
Globe Scientific antistatic polystyrene weighing dishes operate within &minus;10&deg;C to +80&deg;C and resist dilute acids, bases, and alcohols. The antistatic formulation is a specialized grade designed to reduce static charge and prevent sample loss during weighing and cannot be replaced with standard polystyrene labware. As of 2026, 20 mL and 100 mL antistatic weigh boats are widely used in pharmaceutical QC laboratories, research facilities, and academic analytical chemistry workflows where accuracy and contamination-free handling are required.
Keep sample handling clean and consistent&mdash;<a href="https://mbpinc.net/contact-us" title="MBP supports your workflow">MBP supports your workflow</a> &nbsp;with reliable weighing dishes and funnels designed for real lab conditions.

Weighing Dishes & Funnels

Weigh Dish Brochure

Pour Boat Weighing Dishes

3623 by Globe Scientific is a 7 mL antistatic polystyrene pour boat weighing dish (57×44×8 mm) with an integrated pour spout for controlled powder and liquid dispensing. Flat bottom for balance-pan stability; flexible walls for crease-pouring into narrow vessels. Rated -10°C to 90°C. Food-grade compliant. 250/case.

Weighing Boat, Plastic, with Pour Spout, Antistatic, 57 x 44 x 8mm, PS, White, 10mL, 57x44x8mm, CS/8000

Weighing Boat, Plastic, with Pour Spout, Antistatic, 137 x 89 x 25mm, PS, White, 140mL, 137x89x25mm, CS/4000

Weighing Boat, Plastic, with Pour Spout, Antistatic, 191 x 121 x 25mm, PS, White, 270mL, 191x121x25mm, CS/3000

Weighing Boat Vessel, Plastic, with Pour Spout, Antistatic, PS, White/Natural, 15mL, 53x38x13mm, CS/8000

Weighing Boat Vessel, Plastic, with Pour Spout, Antistatic, PS, White/Natural, 25mL, 68x50x16mm, CS/4000

Weighing Boat Vessel, Plastic, with Pour Spout, Antistatic, PS, White/Natural, 120mL, 133x85x26mm, CS/4000

Weighing Boat Vessel, Plastic, with Pour Spout, Antistatic, PS, White/Natural, 240mL, 181x110x26mm, CS/3000

United States

Texas

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