Brands

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
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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.
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<h2 dir="ltr">What you will find:</h2>
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Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
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Fixed-angle and swing-out rotors for varied centrifugation applications
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Lids and sealed buckets for safe and reliable operations
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PCR adapters and microplate carriers for high-throughput workflows
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Centrifuge tubes, holders, and supporting aids for efficient and complete setups
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<h2>How to Choose Universal Centrifuge Accessories</h2>
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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.
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<h2>Specifications Context</h2>
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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.

175/225ml conicalt bottle insert for 500ml rotor, 2/pk.

The Z446-500-A225C by Hermle Labortechnik GmbH is a 2-pack of 175/225 ml conical bottle inserts for the Z446-04500 4 × 500 ml fixed-angle rotor, compatible with Hermle Z446 and Z496 centrifuges. The inserts convert 500 ml rotor positions to accept intermediate-volume conical bottles, supporting preparative centrifugation at up to 10,000 × g.

Manufacture

<h2>What Are Muffle Furnaces?</h2>
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A muffle furnace is a sealed, electrically heated box furnace in which the ceramic muffle chamber isolates the sample entirely from the heating elements, preventing direct contact with resistive wires and ensuring that any combustion by-products from the sample are vented away from the heating system. Modern muffle furnaces use electric resistance heating rather than combustion fuels, but the muffle design continues to provide contamination-free heating by radiating and convecting heat uniformly from all chamber walls. Standard muffle furnaces with Kanthal (FeCrAl) metallic wire elements reach 1,000-1,200 degrees C continuous working temperature; high-temperature models with silicon carbide (SiC) elements reach 1,400-1,600 degrees C; and ultra-high-temperature models with molybdenum disilicide (MoSi2) elements reach 1,700-1,800 degrees C. The continuous working temperature is typically 100 degrees C below the stated maximum temperature and is the more operationally relevant specification. Choose the muffle furnace type based on the continuous working temperature your process requires, not the maximum temperature rating.
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<h2 dir="ltr">What You Will Find:</h2>
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Controlled atmosphere muffle furnaces allow you to run experiments under specific gas conditions or vacuum, featuring ETL/CE certification for total peace of mind.
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Multi-segment PID controllers give you incredible precision over your heating cycles, letting you program complex temperature ramps with up to 30 segments.
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Benchtop muffle furnaces utilize high-quality Kanthal heating elements to deliver rapid and even heat distribution in a compact, space-saving design.
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PC interface furnace systems make data logging and remote monitoring a breeze, so you can track your thermal runs directly from your computer.
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High-temperature muffle units reach extreme thresholds up to 1750&deg;C, perfect for demanding industrial applications and specialized material science research.
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<h2>How to Choose a Muffle Furnace</h2>
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Heating element and maximum temperature
Kanthal (FeCrAl alloy) wire elements are the most affordable and suitable for continuous use to 1,100-1,200 degrees C for standard ashing, LOI, calcination, and low-temperature ceramic work. Silicon carbide rod elements withstand continuous use to 1,450-1,550 degrees C with good thermal shock resistance, appropriate for advanced ceramic sintering and glass melting. Molybdenum disilicide (MoSi2) U-bend elements extend continuous use to 1,600-1,700 degrees C, covering high-temperature ceramics, refractories, and demanding materials research; they require specific operating humidity and atmosphere conditions to prevent element degradation.
Chamber volume and dimensions
Chamber volume (in liters) and internal dimensions (H x W x D in centimeters) determine how many crucibles or sample boats fit per run. Compact benchtop models with 1-4 L chambers suit single-sample analytical ashing and small-batch research. Mid-size models of 5-15 L accommodate multiple crucibles for batch ceramic sintering or parallel LOI measurements. Large-chamber units above 15 L are designed for industrial or pilot-scale heat treatment. Confirm that your largest crucible and sample holder fit within the internal dimensions before specifying.
Programmable controller vs. single setpoint
Single-setpoint PID controllers maintain a fixed temperature and are appropriate for routine ashing at a defined temperature (e.g., 550 degrees C for organic matter, 900 degrees C for carbonates). Programmable multi-segment controllers (typically 20-30 segments) enable automated ramp-hold-cool sequences, which are critical for ceramic sintering profiles where controlled heating rates prevent thermal shock and cracking, for annealing protocols requiring slow controlled cooling, and for glass melting with defined viscosity transitions. RS-232 or USB connectivity allows protocol logging for audit and reproducibility.
Vent port and exhaust management
Muffle furnaces designed for organic ashing and combustion applications include a vent port in the door or top panel to exhaust volatile combustion gases, preventing pressure build-up and protecting the heating element from reactive vapors. Ashing in a poorly vented furnace accelerates element degradation. When ashing sulfur-bearing, halogen-containing, or heavy-metal samples, operate the furnace in a fume hood or ventilated enclosure and confirm that vent gases are safely handled.
Safety features
Research-grade muffle furnaces include over-temperature protection that automatically cuts furnace power when chamber temperature exceeds a preset safety threshold (typically 50-100 degrees C above the setpoint). Door safety switches cut power or trigger an alarm on accidental door opening at high temperatures. Ceramic fiber insulation ensures that outer surface temperatures remain below 50 degrees C during rated operation, reducing burn hazard.
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<h2>Specifications Context</h2>
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The continuous working temperature of a muffle furnace is typically 100 degrees C below the published maximum, and is the specification that governs whether the furnace will complete overnight sintering runs without element degradation. Heating rate from ambient to maximum temperature is typically 5-30 degrees C per minute; a 4.5 L benchtop muffle furnace with ceramic fiber insulation typically reaches 1,000 degrees C in approximately 30-40 minutes at maximum ramp rate. Temperature uniformity across the muffle chamber is specified as plus or minus 5-15 degrees C at maximum temperature; better uniformity requires larger clearance around samples and slower heating rates. Programmable controllers with 30-segment ramp-and-dwell capability, over-temperature protection, and USB data export are standard specifications on research-grade muffle furnaces.&nbsp;
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Ready to bring some high-precision heat to your lab? Browse our muffle furnace collection and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote today.

Muffle Furnaces

1750°C Muffle Furnace With Eurotherm Digital Multi-Segment Controller Specifications

Size Comparison

Spare heating element (Picture on left for CF1400 and on right for CF1700) – ONLY FOR CF1400 & CF1700

Standard Package

1750Â°C Muffle Furnace With Eurotherm Digital Multi-Segment Controller

CF1750 series muffle furnaces feature a chamber with Mitsubishi (Japan) high quality grade 1900 alumina fiber insulation and molybdenum silicide (MoSi2) heating elements. A dual-wall steel housing helps minimize heat loss to exterior surface.\r\n\r\nFurnace operation is controlled by Eurotherm (UK) digital controller with built-in communication port, allowing the user to connect to a PC for remote control and monitoring of the furnace.\r\n\r\n

Manufacturer

1750Â°C 7x6x6" Muffle Furnace With Eurotherm Digital Multi-Segment Controller

1750Â°C 12x8x8" Muffle Furnace With Eurotherm Digital Multi-Segment Controller

1750Â°C 16x12x12" Muffle Furnace With Eurotherm Digital Multi-Segment Controller

18 x 1.5/2.0ml fixed angle rotor for Z287-A

Z287-1820 by Hermle is an 18-position, 45° fixed-angle rotor for 1.5 ml and 2.0 ml microtubes, designed exclusively for the Hermle Z287-A Microcentrifuge PLUS. Maximum speed is 14,000 rpm / 15,994 × g. The rotor covers the full range of standard microtube spin protocols including DNA/RNA pellet collection, spin-column purification, and cell pelleting across 18 tubes per run. Order using catalog number Z287-1820 at <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a> or contact <a href="mailto:customerservice@mbpinc.net">customerservice@mbpinc.net</a>.

Compact Centrifuge Accessories

<h2>What Are Compact Centrifuge Accessories?</h2>
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Compact centrifuge accessories are the interchangeable components that expand the functionality and versatility of compact centrifuges. These include fixed-angle microtube rotors, swing-out blood tube rotors, microplate carriers, conical tube adapters, aerosol-tight lids, and balance tubes. The available accessory options determine which applications a compact centrifuge can support, making compatibility an important consideration when selecting both the instrument and its accessories.
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<h2 dir="ltr">What you will find:</h2>
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6 x 5ml swing-out rotor: for flexible sample processing
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12 x 15ml rotor: for medium-volume applications
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18 x 1.5/2.0ml: rotor for microtube centrifugation
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6 x 50 ml rotor: for higher volume sample handling
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Tube cushions: for secure positioning in adapters
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<h2>How to Choose Compact Centrifuge Accessories</h2>
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Rotor Type and Application Match
Select accessories according to the intended laboratory applications. Fixed-angle rotors support molecular biology workflows and sample pelleting, while swing-out rotors are commonly used for blood collection tubes and clinical applications. Ensure the selected rotor provides the required centrifugal force for your protocols.
Tool-Free Rotor Exchange
Modern compact centrifuges often feature quick, tool-free rotor exchange systems that simplify transitions between different workflows. This capability improves laboratory efficiency when multiple rotor types are used throughout the day.
Tube Adapters
Tube adapters allow smaller sample formats, such as PCR tubes and microtubes, to be used within standard rotor configurations. Manufacturer-approved adapters help maintain proper positioning, balance, and consistent centrifugation performance.
Aerosol-Tight Lids
For biological and potentially infectious samples, aerosol-tight lids provide additional containment and safety during operation. Compatibility with the specific rotor model should always be confirmed before use.
Balance Tubes
Balance tubes are essential when processing uneven numbers of samples. Proper balancing minimizes vibration, protects the centrifuge, and ensures reliable operation throughout the run.
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<h2>Specifications Context</h2>
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Modern compact centrifuge systems support a wide variety of interchangeable accessories, enabling a single instrument to accommodate molecular biology, clinical, cell culture, and microplate applications. Tool-free rotor exchange mechanisms and improved accessory designs continue to enhance laboratory productivity and convenience.
Routine inspection of rotors, lids, adapters, and balance components helps maintain safe operation and prolong equipment lifespan. Following manufacturer recommendations for accessory compatibility and maintenance remains essential for optimal centrifuge performance.
The wait for compatible accessories tailor-made for your centrifuge is over. <a href="https://mbpinc.net/contact-us">Contact now </a>with the expert team at Molecular Biology Products Inc. (MBP) to find the perfect solution for your lab.

18 x 1.5/2.0ml rotor (for Z206-A only)

Z206-1820 by Hermle is an 18-place fixed-angle rotor for the Hermle Z206-A microcentrifuge, accommodating 18 × 1.5/2.0 mL conical microtubes with a maximum speed of 6,000 RPM and maximum RCF of 2,938 × g. It is compatible exclusively with the Z206-A; users requiring higher g-force or different tube formats should evaluate the Z206-1215 or Z206-0650 rotor options for the same centrifuge.

18 x 10ml insert, 2/pk.

The Z446-750-A10 by Hermle is a 2-pack of 10 mL tube inserts for the Hermle Z446-750 swing-out rotor, fitting 18 × 10 mL tubes per insert. Compatible with the Hermle Z446 and Z446-K (refrigerated) centrifuges; supports up to 4,000 rpm / 3,434×g (Z446) or 4,500 rpm / 4,346×g (Z446-K). Enables 10 mL tube processing within the 750 mL round-bucket rotor without a rotor change.

18 x 15ml insert, 2/pk.

The Z446-750-A15R by Hermle is a 15 mL conical tube insert for the Z446-750 swing-out centrifuge rotor, allowing 18 × 15 mL tubes per bucket in the Hermle Z446 or Z446K high-capacity centrifuge. Supplied as 2 inserts per pack. Order two packs for full 4-bucket coverage.

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.
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<h2 dir="ltr">What you will find:</h2>
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1/4" ID TPE Tubing Systems with Female Luer Lock connectors
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1/4" ID TPE Tubing Systems with Male CPC connectors
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1/8" ID TPE Tubing Systems for precision fluid transfer
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1/8" ID TPE Tubing Systems with Female Luer Lock connectors
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1/8" ID TPE Tubing Systems with Male CPC connectors
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0.22&mu;m Vent Filter Assemblies for sterile pressure equalization
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Aseptic Transfer Caps with integrated sealing plugs
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Customizable Tubing Sets for closed-loop systems
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<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. 
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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

DataSheet

Product Literature

1L PETG Square Storage Bottle Transfer Cap

C51121-BBB060B by NEST Scientific is a transfer cap for 1 L PETG square storage bottles. Pre-assembled with 60 cm weldable TPE tube (1/4" ID × 3/8" OD), Male CPC quick-connect connector with female sealing cap, and 0.22 µm vent filter (Φ24 mm). TPE is BPOG validated for extractables/leachables. Sterile, 1/pk, 10/cs. Bottle not included.

1L PETG Square Storage Bottle Transfer Cap, TPE Tube (60cm 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

1L 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

1L 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

1L 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

1L PETG Square Storage Bottle 3-Port Transfer Cap, TPE Tube (60cm, 1/8" ID, 1/4" OD), Female Luer Connector with Male Sealing Plug, Vent Filter(0.22 µm, Membrane Area 4.5cm²), 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.
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<h2 dir="ltr">What you will find:</h2>
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30mL PETG Bottles &ndash; For micro-scale aliquots and stock sampling.
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60mL PETG Bottles &ndash; Compact size for small-volume buffer storage.
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125mL PETG Bottles &ndash; Standard size for routine media prep.
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250mL PETG Bottles &ndash; Ideal for general cell culture storage.
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500mL PETG Bottles &ndash; Optimized for mid-volume biological fluids.
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1000mL PETG Bottles &ndash; For bulk reagent storage and stock solutions.
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2000mL PETG Bottles &ndash; High-capacity for industrial-scale liquid handling.
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<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.

1L PETG Square Storage Bottle with Bi-directional Transfer Cap

C51121-BBB060A by NEST Scientific — 1L PETG square storage bottle with bi-directional transfer cap: TPE tube (60 cm, 1/4" ID), male CPC connector, and 0.22 µm vent filter. Sterile, 1/pk. For closed aseptic fluid transfer in bioprocess workflows.

1L 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

1L 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

1L 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

1L 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

1L PETG Square Storage Bottle with Bi-Directional Transfer Cap with TPE Tube (60cm 1/8" ID 1/4" OD), Male Luer Connector with Female Luer Cap, Vent Filter (0.22 μm 4.5cm²), Sterile, 1/pk, 10/cs

1L 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

1L PETG Square Storage Bottle with 3-Port Transfer Cap with TPE Tube（60cm, 1/8" ID, 1/4" OD), Female Luer Connector with Male Sealing Plug, Vent Filter (0.22 µm, Membrane Area 4.5cm²), Sterile, 1/pk, 10/cs

<h2 data-section-id="3d1466" data-start="0" data-end="47">What are cell culture buffers and solutions?</h2>
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Cell culture buffers and balanced salt solutions are isotonic solutions used to wash, dilute, transport, and temporarily maintain cells outside of complete growth media. Unlike culture media, these solutions do not contain the nutrients and growth factors required for cell proliferation. Instead, their primary role is to maintain physiological pH and osmotic balance while protecting cells from stress during handling and experimental procedures.
The most commonly used cell culture buffers include PBS (Phosphate-Buffered Saline), DPBS (Dulbecco's Phosphate-Buffered Saline), HBSS (Hank's Balanced Salt Solution), and EBSS (Earle's Balanced Salt Solution). These solutions are widely used in cell washing, passaging, tissue dissociation, sample preparation, immunoassays, and short-term cell maintenance.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" role="presentation">Standard Isotonic Buffers to wash cells, maintain osmotic balance, and dilute reagents.</li>
<li dir="ltr" role="presentation">Biological Buffering Agents for metabolic support and pH maintenance.</li>
<li dir="ltr" role="presentation">Cell Dissociation &amp; Neutralizing Reagents maintain high cell viability and are used for cell recovery, detachment, and passaging</li>
<li dir="ltr" role="presentation">Surface Coating &amp; Matrix Solutions with high-grade gelatin for improved cell attachment.</li>
<li dir="ltr" role="presentation">Insulin-Transferrin-Selenite (ITS), Bovine Serum Albumin (BSA), and high-purity Holo-Transferrin for enhanced cell growth and viability</li>
</ul>
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<h2 data-section-id="1cuz7jf" data-start="1165" data-end="1216">How to choose cell culture buffers and solutions</h2>
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PBS vs. DPBS PBS is a simple sodium chloride/phosphate buffer solution. DPBS adds potassium chloride and may include calcium, magnesium, glucose, and pyruvate depending on formulation. The practical difference between PBS and DPBS formulations is minimal &mdash; both maintain pH 7.2-7.4 and osmolality ~280-315 mOsm/kg and are functionally interchangeable for standard washing, immunoassay, and sample preparation applications. If your protocol is sensitive to minor salt concentration differences, compare specific formulation sheets rather than assuming equivalence. &nbsp; Calcium/magnesium-free vs. calcium/magnesium-containing Calcium and magnesium facilitate cell-cell and cell-surface adhesion. Calcium/magnesium-free PBS, DPBS, or HBSS is required: before enzymatic dissociation (residual Ca/Mg inhibits trypsin, requiring more enzyme and harsher conditions &mdash; the most common cause of poor trypsinization results), for rinsing EDTA or other chelators from culture, and for minimizing cell-cell aggregation during gentle dissociation or suspension recovery. Calcium/magnesium-containing formulations support cell binding and clumping, useful for transport applications or attachment-dependent procedures. &nbsp; HBSS/EBSS vs. PBS/DPBS for short-term maintenance HBSS and EBSS include sodium bicarbonate buffering and may include glucose, providing meaningfully better short-term physiological support for cells &mdash; particularly under CO₂ atmosphere &mdash; than the simpler PBS/DPBS formulations. Use HBSS/EBSS when cells need to remain viable for a meaningful period outside complete growth media (tissue dissociation workflows, transport, short-term holding). Use PBS/DPBS for washing steps, immunoassay/Western blot dilutions, and sample preparation where osmotic balance &mdash; not metabolic support &mdash; is the requirement. &nbsp; Phenol red and glucose/pyruvate variants DPBS and HBSS are available with or without phenol red and with or without glucose/pyruvate, allowing matching to downstream applications (phenol red-free for fluorescence work; glucose/pyruvate-containing for short-term metabolic support). &nbsp; Endotoxin and quality testing Regular quality testing of balanced salt solutions includes osmolality, pH, stability, and screening for endotoxins and bacterial/fungal contamination. For immune cell handling and other endotoxin-sensitive applications, premium formulations document endotoxin levels below 0.005 EU/mL &mdash; a meaningfully tighter specification than standard research-grade buffers. &nbsp; Powder vs. liquid format Powdered balanced salt solutions are manufactured without sodium (to avoid sodium bicarbonate off-gassing during storage), requiring sodium bicarbonate addition, pH adjustment, and sterile filtration at time of preparation &mdash; following the same principle as powdered classic media.Specifications context
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<h2>Specifications context</h2>
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Most balanced salt solutions are formulated to maintain physiological conditions with a pH of approximately 7.2&ndash;7.4 and osmolality ranging from about 280&ndash;315 mOsm/kg. These properties help minimize osmotic stress and maintain cell viability during handling.
Calcium- and magnesium-free DPBS remains one of the most commonly specified buffers for cell dissociation workflows because it improves the effectiveness of trypsin and other detachment enzymes. HBSS and EBSS continue to be widely used when short-term metabolic support is required outside complete growth media.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get high-purity buffers and solutions for your lab.

Buffers & Solutions

Buffers/Salts

1M HEPES

Unit Quantity

Sterility

Appearance

Shipping Conditions

Storage Condition

Disclaimer

Shipping Condition

<h2>What is a 1 kb DNA ladder?</h2>
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A 1 kb DNA ladder is a gel electrophoresis size standard containing a defined set of double-stranded DNA fragments spaced at or near 1-kilobase intervals, produced by digesting proprietary plasmids with restriction enzymes to generate typically 10 or more bands spanning 0.5 to 10 kb. One band, commonly at 3.0 kb, is supplied at higher concentration to serve as a bright reference band for rapid gel orientation. The 1 kb ladder is one of the most widely used size standards for routine molecular biology applications, covering the size range commonly encountered in PCR products, restriction digests, and cloned inserts.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" role="presentation">ZR 1 kb DNA Marker for gel electrophoresis analysis and routine DNA fragment sizing&nbsp;</li>
<li dir="ltr" role="presentation">Azura PureView&trade; 1kb DNA Ladder for the detection of DNA bands with high visibility in agarose gel systems</li>
<li dir="ltr" role="presentation">1kb Plus Opti-DNA Marker for cloning verification workflows and a wide range of DNA fragment analysis&nbsp;</li>
<li dir="ltr" role="presentation">1kb Opti-DNA Marker used in nucleic acid analysis and PCR for standard molecular weight reference&nbsp;</li>
<li dir="ltr" role="presentation">Accuris SmartCheck&trade; 1kb DNA Ladder for quality assessment of gel and DNA sizing with high precision</li>
<li dir="ltr" role="presentation">1 KB DNA Marker for routine DNA electrophoresis&nbsp;</li>
</ul>
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<h2>How to choose a 1 kb DNA ladder variant</h2>
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Choose a standard 1 kb ladder for routine PCR and restriction digest analysis
A standard 1 kb ladder with fragments spanning approximately 0.5 to 10 kb is suitable when most expected DNA fragments fall within this range, making it ideal for routine PCR verification and restriction digest analysis.
Choose a 1 kb Plus ladder when samples include smaller fragments below 500 bp
The 1 kb Plus format extends coverage down to 100 bp while maintaining the upper size range, making it useful when both small PCR products and larger DNA fragments need to be analyzed on the same gel.
Choose a 1 kb Extend ladder when samples include very large DNA fragments
The 1 kb Extend ladder expands coverage up to approximately 48.5 kb and is appropriate for large plasmids, BAC clones, and other high-molecular-weight DNA fragments analyzed on low-percentage agarose gels.
Use the recommended loading volume for accurate mass estimation
Loading the ladder according to the manufacturer's recommended amount helps ensure that any provided band mass references can be used for approximate comparison of DNA quantity based on staining intensity.
Confirm the tracking dye is compatible with your staining and imaging setup
Different ladder formulations use different tracking dyes. Some dyes may partially obscure nearby bands under UV visualization, while alternative formulations are designed to minimize interference and improve visibility across the entire ladder range.
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<h2>Specifications context</h2>
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Standard 1 kb DNA ladders are generated from defined DNA templates digested to produce fragments of known sizes. Enhanced-intensity reference bands are included to provide a readily identifiable orientation marker during gel analysis.
Ready-to-load 1 kb ladder formats with reduced-shadow tracking dyes are commonly used in routine agarose gel electrophoresis workflows because they simplify preparation and improve overall band visibility.
<a href="https://mbpinc.net/contact-us">Contact the expert team at MBP</a> to book high-quality 1Kb DNA Ladders for your lab today.

1Kb DNA Ladders

MSDS

DNA Marker Guide

1kb Opti-DNA Marker

Concentration

Application

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1kb Plus Opti-DNA Marker

<h2 dir="ltr"> What is a cDNA Synthesis Kit?</h2>
 A cDNA synthesis kit provides the complete set of reagents - reverse transcriptase enzyme, reaction buffer, dNTPs, RNase inhibitor, and primers - needed to perform first-strand reverse transcription, converting an RNA sample into a cDNA pool. Unlike one-step RT-PCR kits, which combine RT and PCR in a single reaction with gene-specific primers, a cDNA synthesis kit performs reverse transcription as a standalone step, producing a cDNA template that can be used across multiple subsequent PCR or qPCR reactions targeting different genes. Choose a cDNA synthesis kit when one RNA sample needs to be analysed for multiple gene targets, or when downstream qPCR requires a separately-generated, quality-checked cDNA template. 
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li data-section-id="1o7fvd2" data-start="74" data-end="228">First-strand cDNA synthesis kits for RNA-to-cDNA conversion in gene expression workflows, including AzuraQuant&trade; and AzuraFlex&trade; cDNA synthesis kits</li>
<li data-section-id="z40sk0" data-start="229" data-end="395">Standard cDNA synthesis kits for routine transcriptional analysis and downstream PCR applications, including Accuris qMAX and 1st cDNA Synthesis Kit (FS01-00)</li>
<li data-section-id="1yvybqf" data-start="396" data-end="521">Flexible and high-efficiency cDNA synthesis systems designed to support a range of RNA inputs and experimental conditions</li>
<li data-section-id="sl2teb" data-start="522" data-end="599">miRNA-specific cDNA synthesis solutions for small RNA expression analysis</li>
<li data-section-id="17gz9kt" data-start="600" data-end="770" data-is-last-node="">One-step and integrated RT-based systems and master mixes supporting streamlined reverse transcription workflows, including OneScript Plus and OneScript Hot RT kits</li>
</ul>
<h2 dir="ltr"> How to Choose a cDNA Synthesis Kit</h2>
 Priming Strategy Oligo(dT) primers target the poly-A tail of mRNA, enriching specifically for mRNA-derived cDNA and reducing genomic DNA or rRNA background. Random primers (commonly hexamers) prime throughout the RNA template regardless of sequence, useful for templates lacking a poly-A tail (such as bacterial RNA) or when full-length cDNA coverage, including 5' regions, is needed. Some kits offer a blend of both primer types for balanced coverage. Reverse Transcriptase Included Kits built around M-MLV RNase H-minus reverse transcriptase favour longer, more complete cDNA products, while kits using enhanced-thermostability or inhibitor-resistant reverse transcriptases may better handle GC-rich templates or minimally purified RNA samples. Genomic DNA Elimination Step Some cDNA synthesis kits include a separate genomic DNA elimination (gDNA wipeout) step performed before reverse transcription -- important for accurate gene expression quantification, since residual genomic DNA can contribute false signal in downstream qPCR if primers span regions present in both genomic DNA and the cDNA target. Reaction Volume and Throughput cDNA synthesis kits are available in formats scaled for individual reactions through to high-throughput 96-well formats, allowing labs to match kit format to typical sample batch sizes without excessive reagent waste. Downstream Application Compatibility The resulting cDNA pool should be compatible with the intended downstream application -- standard PCR, qPCR with SYBR Green or probe-based detection, or digital PCR -- confirm that the kit's buffer system does not interfere with the chosen downstream detection chemistry. 
<h2 dir="ltr"> Specifications Context</h2>
 In a two-step workflow, the first step synthesises first-strand cDNA using a reverse transcriptase such as M-MLV-RT with the chosen priming strategy, and the resulting cDNA pool can then be used in multiple separate PCR or qPCR reactions targeting different genes - a key advantage when a single RNA sample needs to be analysed for several targets, since the cDNA synthesis step is performed only once. Genomic DNA elimination steps, where included, are typically performed as a brief pre-treatment with a DNase before the reverse transcription reaction itself begins. cDNA synthesis kit components - enzyme, buffer, dNTPs, and RNase inhibitor - are typically stored at &minus;20 &deg;C; RNase-free water and RNase inhibitor handling throughout the workflow are recommended to prevent RNA template degradation before synthesis.
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<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today and get high-precision cDNA synthesis kits for your lab.

cDNA Synthesis Kits

1st cDNA synthesis kit

1st cDNA Synthesis Kit (FS01-00) by MBP contains all the components needed for first-strand cDNA synthesis. Available in 5 (FS01-00), 20 (FS01-01), 50 (FS01-02), and 100 (FS01-03) prep sizes. Ships on ice.