Brands

<h2>What are ELISA kits for methylation in this category?</h2>
&nbsp;
ELISA kits for DNA and RNA methylation in this category are antibody-based assays that quantify the global level of a specific epigenetic mark, most commonly 5-methylcytosine in genomic DNA, 5-hydroxymethylcytosine in genomic DNA, or N6-methyladenosine in RNA, using a plate-based immunoassay format without requiring bisulfite conversion or sequencing. Denatured, single-stranded DNA or RNA from a sample is coated on a plate well, and a mark-specific primary antibody followed by an HRP-conjugated secondary antibody generates a colorimetric signal proportional to the level of the target modification.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">5-mC DNA ELISA kits for quantitative analysis of DNA methylation&nbsp;</li>
<li dir="ltr" role="presentation">DNA controls for validation and calibration of the assay to ensure experimental&nbsp; reproducibility and accuracy&nbsp;</li>
<li dir="ltr" role="presentation">Secondary antibody reagents for specific signal generation and detection in ELISA assays</li>
<li dir="ltr" role="presentation">Coating buffers for consistent assay performance and optimized plate preparation&nbsp;</li>
</ul>
&nbsp;
<h2>How to choose methylation ELISA kits and reagents</h2>
&nbsp;
Match your kit to the specific epigenetic mark you're quantifying
Different kits use antibodies against specific modifications: 5-methylcytosine ELISA kits quantify global DNA methylation, 5-hmC ELISA kits quantify global hydroxymethylation, and m6A ELISA kits quantify RNA N6-methyladenosine. Using a kit with the wrong antibody specificity will not report the mark you intend to measure.
Use methylation standards to build a calibration curve for quantitative results
Running a series of methylation standards with defined percentages alongside your samples allows the absorbance readout to be converted to a specific, meaningful methylation percentage, since the raw ELISA signal alone cannot be interpreted as absolute methylation level without a calibration.
Understand that ELISA measures global levels, not locus-specific methylation
A methylation ELISA gives the overall average percentage of methylation across the genome in a sample, which is useful for comparing broad methylation changes between conditions but cannot identify which specific genes or regions are differentially methylated the way bisulfite sequencing can.
Confirm the required DNA denaturation step is appropriate for your sample type
ELISA kits for DNA methylation typically require single-stranded, denatured DNA coated directly on the plate, and confirming this denaturation step is properly performed is necessary for consistent antibody binding and reproducible signal across wells.
Be aware of cross-reactivity with similar modifications when interpreting results
An antibody against 5-methylcytosine may have some cross-reactivity with 5-hydroxymethylcytosine, and confirming the antibody's published cross-reactivity data helps interpret whether your signal specifically reflects 5-mC, 5-hmC, or both, which matters for studies in cell types where 5-hmC is abundant.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
The 5-methylcytosine ELISA workflow uses an indirect ELISA methodology where denatured, single-stranded DNA samples are coated directly on the plate well surfaces and a 5-mC monoclonal antibody and an HRP-conjugated secondary antibody are added sequentially, generating a colorimetric signal proportional to the total level of methylated cytosine in the sample. As of 2026, methylation ELISA kits are particularly valued for high-throughput screening studies comparing global methylation levels across many treatment conditions or patient groups where single-base-resolution data is not the primary goal.
This category sits within DNA/RNA Methylation, alongside Methylation Standards for calibration, and is related to DNA Hydroxymethylation and Non-Bisulfite Kits &amp; Reagents for higher-resolution methylation analysis. See the full reagents catalog and use Quick Order for recurring orders.
<a href="https://mbpinc.net/contact-us">Contact the expert team of&nbsp; Molecular Biology Products Inc. (MBP)</a> to get high-quality ELISA Kits and Reagents for your lab.

ELISA Kits & Reagents

DataSheet

MSDS

Protocol

5-mC DNA ELISA Kit (2 x 96 Preps.)

D5326 by Zymo Research is a 5-mC DNA ELISA Kit for colorimetric quantification of global 5-methylcytosine in purified DNA. Accepts 10–200 ng DNA per well, detects methylation above 0.5% 5-mC, and completes in under 3 hours. Kit contains reagents for 2 × 96 reactions.

Detection

Equipment

Input

Sample Source

Manufacturer

Shipping Condition

Storage Condition

5-mC DNA ELISA Kit (96 Preps.)

The 5-mC DNA ELISA Kit (D5325) by Zymo Research quantifies global 5-methylcytosine content in 96 samples using a colorimetric anti-5-mC antibody assay (Clone 7D21) with ≥0.5% detection sensitivity, a 7-point standard curve, and a total assay time under 3 hours.

<h2 data-section-id="17lohz5" data-start="0" data-end="48">What Are Externally Threaded Cryogenic Vials?</h2>
&nbsp;
Externally threaded cryogenic vials have the screw thread on the outside of the vial neck, with a cap that covers the entire top portion of the vial when closed. Manufactured from cryogenic-grade virgin polypropylene, these vials are designed to withstand temperatures from &minus;196&deg;C to +121&deg;C and are commonly used for long-term storage of cell lines, serum, blood, DNA, RNA, bacterial cultures, and other biological samples. Available in volumes ranging from 1.2 mL to 5 mL, they are offered in both self-standing and round-bottom formats. Unlike internally threaded vials, external-thread designs use an integrated sealing system rather than a separate O-ring, helping reduce handling issues. For automated decapping systems, high-throughput biobanking, and SBS-format robotic workflows, externally threaded vials are the preferred format.
&nbsp;
<h2 dir="ltr">MBP Offers:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
2D Barcoded Cryogenic Vials for automated tracking
</li>
<li dir="ltr" aria-level="1">
SBS Format Cryo Racks for robotic integration
</li>
<li dir="ltr" aria-level="1">
3D Barcoded Storage Vials for digital inventory
</li>
<li dir="ltr" aria-level="1">
Color-coded Cap Inserts for rapid identification
</li>
<li dir="ltr" aria-level="1">
Self-standing Star-foot Cryo Vials
</li>
<li dir="ltr" aria-level="1">
Silicone O-ring Sealed Leak-proof Containers
</li>
<li dir="ltr" aria-level="1">
Gamma-sterilized Aseptic Storage Tubes
</li>
</ul>
&nbsp;
<h2 data-section-id="px7lzo" data-start="891" data-end="943">How to Choose Externally Threaded Cryogenic Vials</h2>
&nbsp;
Volume
The 2 mL externally threaded vial is the industry standard for cell banking, serum aliquots, and general biospecimen storage. It fits standard 81-well cryo boxes and is suitable for most laboratory applications. Smaller 1.2&ndash;1.5 mL vials are ideal for high-density storage where space efficiency is important, while larger 3&ndash;5 mL formats are commonly used for tissue samples, bacterial glycerol stocks, and larger-volume specimens.
Base Style: Self-Standing vs. Round Bottom
Self-standing vials feature a star-foot or conical base that allows them to stand upright on laboratory benches without requiring a rack, reducing the risk of spills during handling. Round-bottom vials require rack support but often offer broader compatibility with different storage racks and cryo box configurations.
Barcoding: Plain vs. 2D Barcoded
Standard externally threaded vials include a writable surface for manual labeling and are suitable for small to medium-sized sample collections. For large biobanks and automated sample management systems, 2D barcoded vials provide Data Matrix codes that can be scanned directly into Laboratory Information Management Systems (LIMS), improving traceability and reducing manual data entry errors.
Sterility and Purity
Cryogenic vials intended for cell culture, molecular biology, and clinical research should be gamma sterilized and certified RNase-free, DNase-free, non-pyrogenic, and endotoxin-free. These certifications help protect sample integrity and reduce contamination risks during long-term storage.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3061" data-end="3086">Specifications Context</h2>
&nbsp;
Externally threaded polypropylene cryogenic vials are designed for vapor-phase liquid nitrogen storage and ultra-low temperature freezers. The standard outer diameter of a 2 mL vial is approximately 12.5 mm, making it compatible with most 81-well cryo box formats. Modern external-thread designs use integrated thermoplastic elastomer sealing systems that eliminate the need for separate O-rings, reducing the possibility of seal misalignment or loss during routine handling. As of 2026, externally threaded 2 mL vials with SBS-compatible footprints and 2D barcodes are widely used in large-scale biobanking and sample repository applications.
Your research is priceless. Your storage should be equally reliable. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Connect with Molecular Biology Products Inc.</a> for a personalized quote.

Externally Threaded Cryogenic Vials

5.0ml External Thread Side-Coded Cryogenic Vials

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND WHITE CAPS ASSEMBLED.  CRYOVIALS COME WITH SIDE BARCODE AND MARKED GRADUATIONS.25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND RED CAPS ASSEMBLED.  CRYOVIALS COME WITH SIDE BARCODE AND MARKED GRADUATIONS. 25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND GREEN CAPS ASSEMBLED.  CRYOVIALS COME WITH SIDE BARCODE AND MARKED GRADUATIONS.  25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND BLUE CAPS ASSEMBLED.  CRYOVIALS COME WITH SIDE BARCODE AND MARKED GRADUATIONS. 25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND YELLOW CAPS ASSEMBLED.  CRYOVIALS COME WITH SIDE BARCODE AND MARKED GRADUATIONS. 25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND PURPLE CAPS ASSEMBLED.  CRYOVIALS COME WITH SIDE BARCODE AND MARKED GRADUATIONS.   25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE

Biologix Cryogenic Vials (With Side Barcode, 5.0ml)

5.0ml External Thread Side-Coded Cryogenic Vials S Series

5.0ml External Thread Side-Coded Cryogenic Vials with Hexagonal Bottom

2.0ml internal thread, multi codes, sterile O-ring free designed cryogenic vials

CRYOKING 0.5ML VIAL, WHITE CAPS,PP,AUTOCLAVABLE; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE, SIDE BARCODED , WORKING TEMPERATURE FROM -196°C TO 121°C;  NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 0.5ML VIAL, RED CAPS,PP,AUTOCLAVABLE; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE, SIDE BARCODED , WORKING TEMPERATURE FROM -196°C TO 121°C;  NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 0.5ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND GREEN CAPS ASSEMBLED.  CRYOVIALS HAVE WRITING PATCH AND MARKED GRADUATIONS.  25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE, PRICE/CASE, WITH SIDE CODE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND BLUE CAPS ASSEMBLED.  CRYOVIALS HAVE WRITING PATCH AND MARKED GRADUATIONS. 25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE, WITH SIDE CODE

CRYOKING 0.5ML VIAL, YELLOW CAPS,PP,AUTOCLAVABLE; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE, SIDE BARCODED , WORKING TEMPERATURE FROM -196°C TO 121°C;  NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

CRYOKING 5.0ML CLEAR POLYPROPYLENE STERILE CRYOVIALS WITH EXTERNAL THREAD AND PURPLE CAPS ASSEMBLED.  CRYOVIALS HAVE WRITING PATCH AND MARKED GRADUATIONS. 25 CRYOVIALS/BAG, 20 BAGS/PACK, 2 PACKS/CASE, WITH SIDE CODE

CRYOKING 0.5ML VIAL, CLEAR CAPS,PP,AUTOCLAVABLE; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE, SIDE BARCODED , WORKING TEMPERATURE FROM -196°C TO 121°C;  NO O-RING, 25 PIECES/BAG, 20 BAGS/PACK, 2 PACKS/CASE

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
&nbsp;
Universal centrifuge accessories are the interchangeable components that determine the range of applications a universal centrifuge can perform. These include swing-out rotor buckets for blood tubes, conical tubes, microplates, and large bottles; fixed-angle rotors for high-speed pelleting; hematocrit and cytospin rotors; tube adapters; and aerosol-tight bio-containment lids. Selecting the appropriate accessories allows a single centrifuge to support multiple laboratory workflows efficiently and safely.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Fixed-angle and swing-out rotors for varied centrifugation applications
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Lids and sealed buckets for safe and reliable operations
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
PCR adapters and microplate carriers for high-throughput workflows
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Centrifuge tubes, holders, and supporting aids for efficient and complete setups
</li>
</ul>
&nbsp;
<h2>How to Choose Universal Centrifuge Accessories</h2>
&nbsp;
Swing-Out Bucket Selection by Application
Choose swing-out buckets according to the sample formats used in your laboratory. Blood tube buckets support routine clinical applications, conical tube buckets are suitable for cell culture and molecular biology, microplate carriers enable high-throughput workflows, and large-bottle carriers accommodate large-volume sample processing.
Fixed-Angle Rotors
Fixed-angle rotors provide higher centrifugal forces for microtube, PCR tube, and small-volume sample processing. Ensure that both the rotor and centrifuge motor specifications support the required operating speeds and sample formats.
Cytospin Clip Rotors
Cytospin rotors are designed for preparing microscope slides from low-cellularity samples such as body fluids. Verify compatibility with the required funnel sizes and use bio-containment features when processing potentially infectious materials.
Bio-Containment Lids
Aerosol-tight lids help contain biological samples during centrifugation and support safe laboratory practices. Regular inspection of sealing components and O-rings ensures reliable containment and long-term performance.
Reducing Adapter Inserts
Adapter inserts allow smaller tubes to fit securely within larger bucket positions. Using properly matched adapters improves balance, prevents movement during operation, and helps maintain consistent centrifugation results.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Modern universal centrifuge systems support interchangeable accessory configurations that enable rapid transitions between clinical, research, cell culture, and cytology workflows. Swing-out buckets, fixed-angle rotors, and microplate carriers provide flexibility while maintaining compatibility with a broad range of vessel formats.
Routine inspection and maintenance of accessories, including adapters, lids, and sealing components, help ensure safe operation and extend equipment lifespan. Advances in bio-containment systems and modular rotor designs continue to improve laboratory efficiency and versatility.
Time to upgrade your universal centrifuge accessories. <a href="https://mbpinc.net/contact-us">Contact the expert team </a>of Molecular Biology Products Inc. (MBP) and the find perfect match today.

5/7ml holders for Z287-0810H rotor, 2/pk

The Z287-0810-A7 by Benchmark Scientific (Hermle) provides 5ml and 7ml tube-holding inserts for the Z287-0810H swing-out rotor on the Z287-A Microcentrifuge PLUS. They allow the 8-position 10ml rotor to accept smaller-format tubes. Sold as a 2-pack.

Manufacture

Microcentrifuge Accessories

<h2>What Are Microcentrifuge Accessories?</h2>
&nbsp;
Microcentrifuge accessories maintain performance, extend tube-format versatility, and ensure safe operation of benchtop microcentrifuges. These include replacement fixed-angle rotors for 12&ndash;24 &times; 1.5/2.0 mL tube positions, tube adapters for 0.5 mL and 0.2 mL formats, aerosol-tight sealed rotor lids for biocontainment of infectious specimens, balance tubes for partial-load runs, and specialty rotors for PCR strips or 5.0 mL tubes where supported by the centrifuge model. All microcentrifuge accessories are model-specific, as rotor coupling systems and tube bore dimensions differ between manufacturers and even between models within the same brand, making exact model verification essential before ordering.
&nbsp;
<h2>What You Will Find:</h2>
&nbsp;
<ul>
<li>High-quality adapters and rotors for precise and reliable tube fit</li>
<li>Multiple formats including PCR strips, microtubes, plates, and spin columns</li>
<li>Specialized and high-capacity rotors for enhanced compatibility</li>
<li>Swing-out and sealed options for reliable and contamination-free processing</li>
</ul>
&nbsp;
<h2>How to Choose Microcentrifuge Accessories</h2>
&nbsp;
Replacement Rotor Identification
The rotor model number is typically printed on the rotor body or listed in the centrifuge user manual. Cross-reference it with the manufacturer's accessory catalog to confirm that the coupling system matches the centrifuge motor shaft. For standard 12-position rotors, verify compatibility with both 1.5 mL and 2.0 mL microtubes.
Tube Adapter Sizing
For 0.5 mL adapters, ensure the outer diameter closely matches the rotor bore so the tube remains secure during operation. For 0.2 mL adapters, confirm that PCR tubes are positioned correctly to achieve the intended centrifugal force while maintaining stability throughout the run.
Aerosol-Tight Sealed Lids
Choose sealed lids rated for the rotor's maximum operating RCF. O-rings should be inspected regularly for flattening, cracking, or discoloration and replaced immediately if any signs of wear appear. Maintaining replacement O-rings for frequently used lids helps ensure continued safe operation.
Specialty Rotors
Some microcentrifuge models support optional rotors for 5.0 mL tubes, PCR strips, or microplates. These accessories expand workflow flexibility but may operate at lower maximum RCF values than standard 1.5 mL rotors. Always verify the rated speed and force limits before use.
Balance Tubes
Balance tubes help maintain proper rotor balance during partial-load runs. They should closely match the mass and dimensions of the sample tubes being processed. Proper balancing reduces vibration, minimizes bearing wear, and supports long-term centrifuge performance.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Many modern fixed-angle rotors and polypropylene adapters are autoclavable, although specific sterilization requirements vary by manufacturer and material. Always follow the OEM maintenance and decontamination guidelines for each accessory. Rotor service life is generally determined by cumulative operating hours and manufacturer recommendations rather than visual appearance alone.
Sealed rotor lid systems with one-touch release mechanisms have become standard in modern molecular diagnostic laboratories, providing improved safety, easier maintenance, and enhanced biocontainment for regulated workflows.
Stop wasting time searching. The best microcentrifuge accessories are right here at MBP Products. <a href="https://mbpinc.net/contact-us">Connect with our expert team</a> to get your equipment accessories today.

50 ml Swing Rotor Buckets

The Q5122 by Applied Biological Materials (ABM) is a replacement set of 2 swing rotor buckets for the ABM Q5120 Benchtop Centrifuge (4,000 rpm / 2,720 × g). Each bucket holds 2 × 50 ml conical tubes (4 total per set). Keeps a spare set on hand to maximize Q5120 throughput or replace worn components.

PETG Bottle Accessories

<h2 dir="ltr">What are PETG Bottles with Accessories?</h2>
 PETG bottles with accessories are sterile, closed-system liquid storage and transfer assemblies combining a square PETG (polyethylene terephthalate glycol-modified) media bottle with a bi-directional transfer cap pre-fitted with TPE (thermoplastic elastomer) tubing and a terminal connector &mdash; Luer lock (male or female) or CPC (clamped pressure connector). The closed system allows aseptic media, serum, buffer, or pharmaceutical intermediate transfer between containers without open-pour steps, substantially reducing contamination risk and compliance burden in cGMP-regulated and BSL-2 laboratory environments.&nbsp; Choose PETG bottle assemblies for any liquid transfer workflow requiring an aseptic closed system &mdash; cGMP media dispensing, FBS aliquoting under sterile barrier, viral vector transfer, or pharmaceutical intermediate handling where open-pour steps are prohibited by SOP or regulatory requirement.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
1/4" ID TPE Tubing Systems with Female Luer Lock connectors
</li>
<li dir="ltr" aria-level="1">
1/4" ID TPE Tubing Systems with Male CPC connectors
</li>
<li dir="ltr" aria-level="1">
1/8" ID TPE Tubing Systems for precision fluid transfer
</li>
<li dir="ltr" aria-level="1">
1/8" ID TPE Tubing Systems with Female Luer Lock connectors
</li>
<li dir="ltr" aria-level="1">
1/8" ID TPE Tubing Systems with Male CPC connectors
</li>
<li dir="ltr" aria-level="1">
0.22&mu;m Vent Filter Assemblies for sterile pressure equalization
</li>
<li dir="ltr" aria-level="1">
Aseptic Transfer Caps with integrated sealing plugs
</li>
<li dir="ltr" aria-level="1">
Customizable Tubing Sets for closed-loop systems
</li>
</ul>
<h2 dir="ltr"> How to Choose PETG Bottle Assemblies</h2>
 Connector Type: Luer Lock vs. CPC Female Luer lock connectors (catalog 352503, 352506 series) mate with male Luer tips on syringe filters, tubing sets, and sterile sampling devices &mdash; the most common connector for inline sterile sampling and small-volume aseptic transfer. Male Luer lock connectors fit female Luer receptacles on peristaltic pump tubing and fluid path assemblies. CPC (clamped pressure connector, also called quick-connect) connectors provide a tool-free, dry-disconnect coupling between two fluid lines without dripping &mdash; used in bioreactor harvest lines, media feed assemblies, and bioprocess fluid path management. Tubing Size: 1/8" vs. 1/4" I.D. NEST assemblies are available with 60 cm TPE tubing in 1/8" I.D. &times; 1/4" O.D. (for low-flow, small-volume transfer with syringe or peristaltic pump at low speed) or 1/4" I.D. &times; 3/8" O.D. (for higher-flow transfer with standard peristaltic pumps). The 3/8" O.D. tubing is the standard for most bioprocess peristaltic pumps. Confirm pump head bore size against tubing O.D. before ordering. Bi-Directional vs. Standard Cap The bi-directional transfer cap in NEST PETG assemblies has a dual-port design: one port connects to the TPE transfer tubing (outflow or inflow path), and the cap as a whole seals the bottle neck during the non-transfer state. This design allows the bottle to function both as a source vessel (liquid out via tubing) and a receiver vessel (liquid in via tubing) without changing the cap assembly. Confirm whether your process requires one-way or two-way transfer before selecting the assembly format. Volume Options NEST PETG bottle assemblies are available in 250 mL, 500 mL, and 1,000 mL volumes, matching standard media, sera, and buffer kit sizes. The 250 mL assembly is standard for small-volume cGMP process sampling; 500 mL and 1,000 mL assemblies suit bulk media dispense and FBS aliquoting at scale. Standard Bottle vs. Assembly For applications that do not require tubing or connectors &mdash; routine cold storage of media, FBS thaw, and buffer archiving &mdash; standard NEST PETG square bottles with HDPE screw caps (catalog 352xxx without accessories) are available at a lower cost. The accessory assembly format is only necessary when closed-system transfer between containers is required.
<h2 dir="ltr"> Specifications Context</h2>
 NEST Scientific PETG bottle assemblies are manufactured under a cGMP quality system conforming to ISO 13485 and 21 CFR 820 (QSR). All components are USP Class VI; the complete assembly is gamma irradiated in the USA to SAL 10⁻⁶ and provided in double-bagged sterile packaging for cleanroom entry. Each lot is tested and certified free of endotoxins, pyrogens, DNase, RNase, and particulates. PETG material: USP Class VI, temperature range &minus;80 &deg;C to +60 &deg;C; TPE tubing: USP Class VI, biocompatible, platinum-cured equivalent. The bi-directional cap body is polycarbonate (PC); the tubing and connector are TPE and polypropylene (PP) or nylon, all USP Class VI. As of 2026, NEST PETG bottle assemblies are used in cGMP biopharmaceutical manufacturing, viral vector production (lentivirus, AAV), FBS aliquoting under sterile barrier, and academic cGMP pilot programs. 
&nbsp;
Maintain the highest standards of aseptic integrity with our specialized assemblies. <a href="https://mbpinc.net/contact-us">Reach out to the experts</a> at Molecular Biology Products Inc. for a quote and keep your fluid handling error-free.

PETG Bottle With Accessories

Product Literature

500mL PETG Square Storage Bottle Transfer Cap

NEST Scientific C51021-BBB060B: 500 mL PETG square storage bottle with bi-directional transfer cap, 60 cm Saint-Gobain TPE tube (1/4" ID, 3/8" OD), MPC connector, 0.22 µm PTFE vent filter. E-beam sterile SAL 10⁻⁶, ISO 7 cleanroom, USP VI. 1/pk, 10/cs. Order at <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a>.

500mL PETG Square Storage Bottle Transfer Cap, TPE Tube (60 cm 1/4" ID 3/8" OD), Male CPC Connector with Female Sealing Cap, Vent Filter (0.22 μm Φ24mm), without Bottle, Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle Transfer Cap, TPE Tube (60cm 1/4" ID 3/8" OD), Female Luer Lock Connector with Luer plug, Vent Filter (0.22 μm Φ24mm), without Bottle, Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle Transfer Cap, TPE Tube (60cm 1/8" ID 1/4" OD), Male CPC Connector with Female Sealing Cap, Vent Filter (0.22 μm Φ24mm), without Bottle, Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle Transfer Cap, TPE Tube (60cm 1/8" ID 1/4" OD), Female Luer Lock Connector with Luer Plug, Vent Filter (0.22 μm Φ24mm), without Bottle, Sterile, 1/pk, 10/cs

PETG Square Bottles

<h2 dir="ltr">What are PETG Square Media Bottles?</h2>
 PETG square media bottles are single-use, sterile, square-footprint containers manufactured from glycol-modified polyethylene terephthalate (PETG) for storing tissue culture media, fetal bovine serum, PBS, HBSS, buffers, pharmaceutical intermediates, and pH-sensitive aqueous solutions. The square profile reduces cold-room and refrigerator footprint by approximately 25% compared to equivalent-volume round bottles, and flat sides prevent rolling during transport. PETG square bottles are the correct choice over PET when low-temperature stability to &minus;80 &deg;C is needed, when wall durability under cold-room handling is critical, or when closed-system accessory cap assemblies will be used for aseptic liquid transfer.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
30mL PETG Bottles &ndash; For micro-scale aliquots and stock sampling.
</li>
<li dir="ltr" aria-level="1">
60mL PETG Bottles &ndash; Compact size for small-volume buffer storage.
</li>
<li dir="ltr" aria-level="1">
125mL PETG Bottles &ndash; Standard size for routine media prep.
</li>
<li dir="ltr" aria-level="1">
250mL PETG Bottles &ndash; Ideal for general cell culture storage.
</li>
<li dir="ltr" aria-level="1">
500mL PETG Bottles &ndash; Optimized for mid-volume biological fluids.
</li>
<li dir="ltr" aria-level="1">
1000mL PETG Bottles &ndash; For bulk reagent storage and stock solutions.
</li>
<li dir="ltr" aria-level="1">
2000mL PETG Bottles &ndash; High-capacity for industrial-scale liquid handling.
</li>
</ul>
<h2 dir="ltr"> How to Choose PETG Square Media Bottles</h2>
 PETG vs. PET vs. PC PETG and PET are chemically similar but differ in crystallinity. PETG's glycol modification reduces polymer crystallinity, improving impact resistance, flexibility, and low-temperature stability. PETG is rated from &minus;80 &deg;C to +60 &deg;C; PET from &minus;60 &deg;C to +60 &deg;C; PC from &minus;135 &deg;C to +135 &deg;C. PETG and PET are both BPA-free and non-autoclavable. PC is autoclavable but BPA-containing. For low-temperature archival storage of serum, enzymes, and viral stocks below &minus;60 &deg;C, PETG is the appropriate single-use choice. Volume Selection by Application The 30 mL and 60 mL bottles suit single-use serum aliquots, enzyme dilutions, and small-scale media preparation for T25 or T75 flasks. The 125 mL and 250 mL formats cover standard T75 and T175 media changes. The 500 mL bottle aligns with standard FBS lot sizes and 500 mL media kit volumes. The 1,000 mL bottle stores a full 1 L media preparation or 1 L FBS aliquot. Each bottle includes 15% headspace above nominal volume for expansion during freezing and thawing. Graduated Markings: Molded vs. Printed NEST Scientific PETG square bottles feature molded graduations (not printed), which remain legible through repeated freeze-thaw cycles, solvent exposure, and autoclave label-remover use. Printed graduations on competing formats can abrade or smear over time. Molded graduations are an important quality checkpoint when selecting PETG bottles for long-term archival. Cap Design NEST PETG square bottle caps are HDPE, designed through a one-shot mold process without an inner gasket. The gasket-free design eliminates a potential leachable point and produces a tighter, more consistent seal under the torque applied during manual capping in a cold room or gloved biosafety cabinet environment. The external collar design provides a secure grip for easy sealing under gloves. Double-Bagged GMP Packaging NEST PETG square media bottles are available in double-bagged sterile packaging, meeting material entry requirements for GMP cleanrooms and ISO-classified bioprocess areas. Each inner bag is heat-sealed; the outer bag provides additional sterility protection against outer packaging damage during courier transit. Standard Bottle vs. Accessory Assembly For routine media and serum cold storage, standard PETG square bottles with HDPE screw caps are the appropriate, cost-effective format. When closed-system aseptic liquid transfer between containers is required &mdash; cGMP media dispensing, viral stock aliquoting, pharmaceutical intermediate handling &mdash; choose NEST PETG bottles with bi-directional transfer cap assemblies (TPE tubing + Luer lock or CPC connector). 
<h2 dir="ltr"> Specifications Context</h2>
 NEST Scientific PETG square media bottles are manufactured from 100% virgin PETG resin in ISO 8 (Class 10,000) cleanrooms. Both PET and PETG materials meet USP Class VI and USP &lt;661&gt; biocompatibility requirements and ISO 10993 quality system standards per NEST lot certificates. E-beam sterilization achieves SAL 10⁻⁶. Smooth inner surface minimizes liquid residue on the wall. Operating temperature: &minus;80 &deg;C to +60 &deg;C. HDPE cap is heavy-metal-free per regulatory testing. Shelf life: 3 years from production month. As of 2026, NEST Scientific is ISO 9001:2015 and ISO 13485 certified with FDA registration. 
In a field where a single leak can ruin weeks of data, precision is everything. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Contact the Molecular Biology Products Inc. team</a> for a quote and ensure your closed-system transfers stay flawless.

500mL PETG Square Storage Bottle with Bi-directional Transfer Cap

C51021-BBB060A by NEST Scientific is a 500&#160;mL PETG square storage bottle with bi-directional transfer cap, 60&#160;cm TPE tubing (1/8&#8243; ID × 1/4&#8243; OD), 0.22&#160;µm vent filter, and standard Luer connector. Sterile; DNase/RNase/pyrogen-free; BPOG-validated; manufactured under ISO&#160;13485/21&#160;CFR&#160;820. For aseptic closed liquid transfer in pharmaceutical and bioprocess workflows. Pack: 10/case.

500mL PETG Square Storage Bottle with Bi-directional Transfer Cap with TPE Tube (60cm 1/4" ID 3/8" OD), Male CPC Connector with Female Sealing Cap, Vent Filter (0.22 μm Φ24mm), Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle with Bi-directional Transfer Cap with TPE Tube (60cm 1/4" ID 3/8" OD), Female Luer Lock Connector with Luer Plug, Vent Filter (0.22 μm Φ24mm), Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle with Bi-Directional Transfer Cap with TPE Tube (60cm 1/4" ID 7/16" OD), Heat seal ,Vent Filter (0.22 μm 4.5cm²), Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle with Bi-directional Transfer Cap with TPE Tube (60cm 1/8" ID 1/4" OD), Male CPC Connector with Female Sealing Cap, Vent Filter (0.22 μm Φ24mm), Sterile, 1/pk, 10/cs

500mL PETG Square Storage Bottle with Bi-directional Transfer Cap with TPE Tube (60cm 1/8" ID 1/4" OD), Female Luer Lock Connector with Luer Plug, Vent Filter (0.22 μm Φ24mm), Sterile, 1/pk, 10/cs

500ml blood bag buckets for Z496-1000-AC 2/pk

The Z496-500-BLD by Hermle is a 2-pack of 500 mL blood bag buckets for the Hermle Z496-1000-AC swing-out rotor on the Z496-K floor centrifuge, rated to 4,600 rpm / 5,298 × g for blood component separation. Order two packs (4 buckets) for full 4-position rotor coverage.

Filtration Centrifuge Accessories

<h2>What Are Filtration Centrifuge Accessories?</h2>
&nbsp;
Filtration centrifuge accessories are the consumable and add-on components that extend or maintain the functionality of centrifugal filter devices. These include replacement filter inserts with specific molecular weight cut-off (MWCO) membranes, centrifuge tube adapters, 96-well filter plates for high-throughput processing, and collection tubes for retentate and filtrate recovery. Since membrane inserts are designed for specific device formats and brands, selecting compatible accessories is essential for reliable performance, sample integrity, and efficient laboratory workflows.
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<h2>What You Will Find</h2>
&nbsp;
<ul>
<li>Perforated centrifugal baskets for separation processes based on filtration</li>
<li>Non-perforated centrifugal baskets for regulated containment of samples</li>
<li>Filter materials available in various sizes, including 7 &micro;m, 20 &micro;m, 30 &micro;m, and 50 &micro;m, to meet specific filtration requirements</li>
</ul>
&nbsp;
<h2>How to Choose Filtration Centrifuge Accessories</h2>
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Replacement Filter Inserts by MWCO
Select the MWCO based on the target molecule and application requirements. Lower MWCO values are suitable for retaining small proteins and peptides, while higher MWCO options support larger biomolecules, complexes, and viral particles. Always use replacement inserts designed for the original device format and manufacturer.
Centrifuge Tube Adapters
Adapters help position filtration devices correctly within the centrifuge rotor. Proper seating prevents uneven loading, improves filtration efficiency, and supports consistent sample recovery throughout the centrifugation process.
96-Well Filter Plates
Laboratories processing multiple samples simultaneously benefit from 96-well filtration systems. These formats support applications such as protein removal, nucleic acid cleanup, and pharmaceutical screening while maintaining compatibility with standard microplate centrifuge rotors.
Collection Tube Receivers
Collection tubes capture filtrate and concentrated samples during operation. For highly sensitive applications, dedicated single-use collection tubes help minimize cross-contamination and maintain sample purity.
Pre-Wetting Protocols
Many membrane systems perform best when pre-wetted with an appropriate buffer before sample loading. This process improves flow consistency, reduces resistance, and helps prepare the membrane for efficient filtration.
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<h2>Specifications Context</h2>
&nbsp;
Most centrifugal filtration devices operate within recommended centrifugal force ranges of 3,000&ndash;5,000 &times;g, although specific limits vary by product design and membrane type. Following manufacturer guidelines helps prevent membrane damage and ensures optimal sample recovery.
Modern filtration accessories incorporate advanced membrane technologies, improved collection systems, and high-throughput formats that support biotechnology, pharmaceutical, and life science applications. These developments continue to improve efficiency, reproducibility, and laboratory productivity.
The search for perfect accessories compatible with your filtration centrifuge is over. <a href="https://mbpinc.net/contact-us">Contact now</a> with the expert team at Molecular Biology Products Inc. to find a perfect match.

500ml centrifugal basket, non-perforated

The Z600-500-NP by Hermle is a 500 ml non-perforated centrifugal basket for the Hermle Z600 SIEVA-3 filtration centrifuge, enabling pelleting and clarification workflows in the same instrument used for membrane filtration.

500ml centrifugal basket, perforated

Z600-500-P by Hermle is a 500 ml perforated centrifugal basket for the Hermle Z600 SIEVA-3 filtration centrifuge (Z600-S3), rated to 10,000 rpm / 7,825 × g. The perforated stainless steel design enables cake filtration, crystalline product isolation, and biomass harvesting workflows by allowing the liquid phase to pass through the basket wall under centrifugal force.