Brands

Plate Sealer Accessories

<h2>What Are Plate Sealer Accessories?</h2>
&nbsp;
Plate sealer accessories include consumable sealing materials and instrument hardware used with heat plate sealers. Consumable sealing materials, such as sealing films and foil seals, are the most frequently replaced accessories, with one seal used per plate. Films and foils vary in optical properties, adhesion, temperature resistance, and pierceability, making it important to select the appropriate type for PCR, qPCR, sample storage, or automated liquid handling. Instrument hardware accessories, such as sealing frames, adapter inserts, and replacement components, are model-specific and designed to maintain proper sealer performance. Before ordering, confirm whether your application requires an optically clear film, a pierceable foil, or a cryogenic-rated foil.
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<h2>What You Will Find</h2>
&nbsp;
<ul>
<li>Optically clear qPCR sealing films with peelable, pierceable, and strong-bond options.</li>
<li>Peelable sealing films compatible with most microplate types for PCR and qPCR workflows.</li>
<li>Strong-bond sealing films for polypropylene (PP) plates requiring secure sample containment.</li>
<li>Foil plate seals with peelable or strong-bond options for PP plates.</li>
<li>Foil seals suitable for DMSO applications and cold storage from -200&deg;C to 110&deg;C.</li>
</ul>
&nbsp;
<h2>How to Choose Plate Sealer Accessories</h2>
&nbsp;
Seal material: film vs. foil
Polymer films are optically transparent and required for qPCR, fluorescence assays, and plate readers that detect through the seal. They are suitable for thermal cycling and short-term storage. Aluminum foil seals provide superior evaporation protection and are preferred for long-term storage, solvent resistance, and applications that do not require optical read-through.
Optical properties for qPCR
Use optically clear, low-autofluorescence sealing films for real-time qPCR to maximize fluorescence detection sensitivity. Confirm compatibility with your PCR instrument and fluorescence detection wavelengths.
Cryogenic performance
For storage at -80&deg;C or below, select sealing materials designed to maintain adhesion and barrier integrity through repeated freeze-thaw cycles. Cryogenic-rated foil seals provide the most reliable long-term performance.
Pierceable vs. non-pierceable seals
Pierceable foil seals allow robotic or manual pipette access without removing the seal, making them suitable for automated workflows. Non-pierceable seals provide the highest barrier protection for storage but must be removed before accessing samples.
Format adapters and sealing frames
Sealing frames and adapter inserts help align sealing materials and non-standard microplate formats during heat sealing. Verify compatibility with both your plate sealer model and microplate format before ordering.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Film thickness influences evaporation protection, optical clarity, and piercing performance. Polymer films are typically 60 to 100 micrometers thick, while aluminum foils are generally 50 to 70 micrometers thick. Also confirm whether your plate sealer uses pre-cut sealing sheets or roll-format sealing material, as these formats are not interchangeable.
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To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

Optically clear sealing film for qPCR, Strong Bond, for PP plates, 100/pk

SmartSeal MS1000-PCR2 by Benchmark Scientific: optically clear, strong bond (permanent) sealing film for qPCR PP plates, 125 × 78 mm sheets, 100/pk. Designed for the Accuris SmartSeal MS1000 sealer. Suitable for qPCR thermal cycling and long-term sample storage at –80°C.

Manufacture

Laboratory Aspirator Accessories

<h2>What Are Laboratory Aspirator Accessories?</h2>
&nbsp;
Laboratory aspirator accessories are the consumable and replacement components that keep a benchtop vacuum aspirator operating safely and efficiently. These include hydrophobic/antibacterial in-line filters, 2-liter polycarbonate collection bottles with overflow protection, silicone tubing, and handheld aspiration tools with adapters.
The in-line filter is the most critical safety component, acting as the primary barrier between biohazardous waste and the vacuum pump. Tubing and collection bottles are regularly replaced to maintain performance and prevent contamination or leaks during operation.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>Hydrophobic filters: for controlling contamination and system protection</li>
<li>Single-channel adapters: for precise aspiration tasks</li>
<li>Multi-channel adapters: for higher performance output</li>
<li>Handheld vacuum controllers: for controlled liquid removal</li>
<li>Silicone tubing sets: for flexible connection of the system</li>
<li>Quick disconnect kits: for easy setup and maintenance</li>
<li>Collection bottles: with lids for safe liquid storage</li>
<li>Silicone O-rings: for secure sealing and preventing leaking</li>
</ul>
&nbsp;
<h2>How to Choose Laboratory Aspirator Accessories</h2>
&nbsp;
In-Line Filter Replacement
Replace the in-line filter immediately if it becomes wet, discolored, or saturated. A compromised filter can no longer block aerosols effectively and may allow contamination to reach the pump system. Always use OEM-compatible filters to ensure proper fit and hydrophobic performance.
Collection Bottle Condition
Inspect collection bottles regularly for cloudiness, cracks, or malfunctioning overflow valves. Replace bottles that show wear or damage to maintain safe waste containment. Avoid using solvents that may degrade polycarbonate material.
Tubing Integrity
Silicone tubing should remain flexible and free from kinks or permanent deformation. Replace tubing when it becomes stiff, damaged, or no longer forms secure connections. Autoclaving is typically supported, but repeated use may require periodic replacement.
Handpiece and Adapter Selection
Ensure handpieces and adapters match your application needs. Standard tip adapters are used for general aspiration, while fine stainless-steel capillary tips are required for microplate and precise liquid removal tasks.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Modern laboratory aspirator systems use oil-free vacuum pumps with adjustable pressure ranges, hydrophobic in-line filters, and overflow-protected collection bottles to ensure safe and reliable liquid handling. These systems are widely used in cell culture, clinical workflows, and general laboratory applications.
Routine replacement of consumables such as filters, tubing, and bottles is essential for maintaining performance, preventing contamination, and extending instrument lifespan. Using manufacturer-approved accessories ensures compatibility and consistent operation.
 Grab the best quality laboratory aspirator accessories today. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;"> Contact the expert team </a> of Molecular Biology Products (MBP) now.

Option quick disconnect kit, includes 2 male/female attachments & silicone tubing

V0020-QD by Benchmark Scientific — Quick Disconnect Kit for the Aspire™ V0020 Laboratory Aspirator. Includes 2 male/female quick-connect fittings and silicone tubing for rapid interchange of the V1002 handheld controller or other aspiration heads without cutting tubing.

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.
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<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>
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<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.
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<h2>Specifications Context</h2>
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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.

Optional 8 x 5ml rotor for MC-24™ Touch

The C2417-R5 by Benchmark Scientific is an optional 8-position rotor for 5 ml tubes for the MC-24 Touch microcentrifuge (C2417). Replaces the standard COMBI-Rotor when dedicated 5 ml capacity is required. Sold individually; C2417 instrument sold separately.

Shaking Incubator Accessories

<h2>What Are Shaking Incubator Accessories?</h2>
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Shaking incubator accessories are platform attachments and replacement components that secure culture vessels to the shaking deck, expand the range of vessel types a single incubator can accommodate, and maintain safe operation at high agitation speeds. The primary accessories are flask clamps (spring-type or magnetic-attachment systems) for Erlenmeyer flasks of specific volumes, tube racks for culture tubes and centrifuge tubes, microplate holders for 24-well, 96-well, and deep-well plate formats, universal platforms with non-slip surfaces for various container types, and adhesive mats for securing irregularly shaped vessels. Accessories are not universally interchangeable: platform slot patterns, clamp arm geometry, and attachment mechanisms vary by manufacturer and model, so confirm compatibility with the specific shaking incubator before ordering. Always match the flask clamp size to the exact flask volume in use; undersized clamps allow movement that damages cultures, and oversized clamps do not seat correctly in platform slots.
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<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">MultiTherm Touch blocks offer specialized holders for cryotubes, PCR plates, and centrifuge tubes up to 5ml.</li>
<li dir="ltr" role="presentation">Microplate blocks provide secure, uniform agitation for standard and deep-well 96-well plates.</li>
<li dir="ltr" role="presentation">Universal spring platforms offer a flexible solution for holding various bottle and flask sizes on a single surface.</li>
<li dir="ltr" role="presentation">Precision tube adapters allow you to mix 0.2ml to 2.0ml tubes with perfect stability and heat transfer.</li>
<li dir="ltr" role="presentation">Stainless steel shelves help you maximize your incubator&rsquo;s internal capacity for static or upright samples.</li>
</ul>
&nbsp;
<h2>How to Choose Shaking Incubator Accessories</h2>
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Flask clamp size and type
Flask clamps are specified by flask volume: 50 mL, 125 mL, 250 mL, 500 mL, 1 L, and 2 L are the standard sizes. One-piece stainless steel clamp construction is preferable to spot-welded or riveted designs for durability at high agitation speeds. For flasks 2 L and above, clamps with a secondary girdle ring provide additional security during prolonged shaking at 200 rpm or above. Magnetic clamp systems (such as MAGic Clamp-style designs) allow tool-free, rapid exchange between flask sizes without loosening bolts.
Tube racks
Tube racks for shaking incubators accommodate standard 10 mL, 14 mL, 17 mL, 50 mL, and culture tube formats, slotted into the platform deck. Adjustable tube racks that fit multiple tube diameters offer more flexibility than fixed-diameter designs. Confirm the number of tube positions and whether the rack base fits the specific platform slot pattern of your incubator.
Microplate holders
Microplate holders secure 96-well, 24-well, deep-well (2 mL per well), and skirted PCR plate formats to the shaking platform. Platforms designed for microplates typically operate at smaller orbit sizes (19 mm) and higher speeds (up to 400 rpm) compared to flask platforms. Confirm that the holder is rated for the plate format and the speed required by your protocol.
Universal platforms and adhesive mats
Universal platforms with rubber-coated surfaces provide a non-slip base for tissue culture flasks (T-25, T-75), Petri dishes, staining trays, and containers that do not fit standard clamps. Adhesive mats function similarly and are useful for microcentrifuge tube arrays or multiple small containers. Replace adhesive mats periodically as tackiness degrades with repeated use and autoclaving.
Platform compatibility
Before purchasing accessories, identify the platform slot pattern (tab-and-slot vs. screw-mount vs. magnetic) specific to your shaking incubator model. Accessories from the same manufacturer as the incubator are the safest choice; third-party platforms may fit universal tab-and-slot patterns, but should be verified before high-speed use.
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<h2>Specifications Context</h2>
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Stainless steel flask clamps are the preferred material for autoclavability and chemical resistance. Verify whether accessories can be autoclaved at 121 degrees C; not all rubber or plastic components on tube racks and mats withstand repeated steam sterilization. The load capacity of the platform (in kg per position) limits the total mass of vessel plus culture volume that can be safely agitated; exceeding this limit at high speed stresses the drive bearings. For heavy-use labs running continuous 24-hour shaking protocols, select clamps with single-piece construction and check the drive belt or brushless motor specifications for continuous-duty cycle ratings.&nbsp;
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Ready to optimize your incubator&rsquo;s capacity? Browse our accessories collection and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a friendly quote today.

Optional Adapter, 20 x 0.5 ml for microplate shakers

The BT1500-A05 by Benchmark Scientific is a 20 × 0.5 mL microtube adapter for the BT1500 Orbi-Shaker MP and H6004 Incu-Mixer MP4 microplate shakers. Enables orbital mixing of 0.5 mL microtubes on an existing microplate shaker platform.

Optional Adapter, 20 x 1.5/2.0 ml for microplate shakers

BT1500-A1520 by Benchmark Scientific is a 20 × 1.5/2.0 ml microtube adapter for the Orbi-Shaker MP (BT1500) and H6004 microplate shaker platforms, converting the microplate footprint to accommodate standard microtubes without changing instruments. Ideal for DNA/RNA extraction, bead-based assays, and enzymatic incubations in microtube format. Procurement teams at academic and research institutions can order through MBP using catalog number BT1500-A1520.

Optional CO2 gas regulator

The H2300-REG by Benchmark Scientific is a CO2 gas regulator accessory for the H2300-HC2 MyTemp Mini CO2 benchtop incubator. It regulates cylinder pressure down to incubator-safe inlet pressure and is required when connecting to a bottled CO2 supply without an existing line regulator. Available from MBP Inc. for cell culture labs across the USA and Canada.

Vortex Mixers Accessories

<h2>What are vortex mixer accessories?</h2>
&nbsp;
Vortex mixer accessories are the interchangeable cup heads, foam inserts, and platform adapters that convert a standard single-tube vortex mixer to batch-process multiple tubes or different vessel formats simultaneously. The standard single-tube cup head can be replaced with a multi-tube foam insert holding 6 to 24 microcentrifuge tubes, a tube strip or microplate adapter, or a platform-style attachment for larger vessel formats. These accessories are typically instrument-specific, using a proprietary attachment mechanism that varies between vortex mixer brands.&nbsp;
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Tube racks for 0.5 ml, 1.5/2.0 ml, 12 mm, 13 mm, and 15 ml tubes</li>
<li dir="ltr" role="presentation">High-capacity tube racks for holding up to 96 samples</li>
<li dir="ltr" role="presentation">Horizontal heads for mixing 2 &times; 50 ml tubes and 4 &times; 15 ml tubes</li>
<li dir="ltr" role="presentation">Foam tube holders for 6 mm, 10 mm, 12 mm, and 16 mm tubes</li>
</ul>
&nbsp;
<h2>How to choose vortex mixer accessories</h2>
&nbsp;
Select foam inserts by the tube format they accommodate
Foam inserts for vortex mixers are sized to hold specific tube formats by pressing the closed tube caps into the foam at defined positions: standard microcentrifuge inserts hold 1.5 mL and 2 mL tubes, larger foam blocks accommodate 15 mL and 50 mL conical tubes, and low-profile inserts hold 0.5 mL tubes or PCR strip tubes in defined arrays. Check that the insert format matches the tube types you use most and that the insert is rated for your vortex mixer's speed range.
Confirm accessory compatibility with your vortex mixer model
Vortex mixer accessories attach via model-specific connectors &mdash; threaded onto the drive spindle or clipped onto the instrument head &mdash; and are not universally compatible between brands or models. Always check that the specific accessory is listed as compatible with your vortex mixer model before ordering.
Use a microplate adapter for 96-well plate mixing
Microplate vortex adapters replace the standard cup head with a flat or recessed platform sized to hold a standard 96-well plate, allowing entire plates to be mixed in continuous mode for ELISA plate washing steps, microplate cell resuspension, and plate-format biochemical assays. The adapter should be rated for the speed at which it will be used to prevent plate sliding.
Check that foam insert speed ratings are compatible with your operating speed
Foam inserts are rated for a maximum operating speed, and using a foam insert at speeds above its rating risks tubes not being securely retained by the foam compression at high rpm. Confirm that the insert's rated speed covers your intended operating speed before batch-processing valuable samples.
Consider a universal platform adapter for flexible use
Some vortex mixer manufacturers offer a universal platform adapter that replaces the cup head with a flat non-slip platform, accepting a wide range of vessel formats using a non-slip mat for retention. While less format-specific than a dedicated foam insert, a universal platform provides flexibility for less common vessel formats.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Foam inserts work by compressing foam around tube caps to provide frictional retention during high-speed oscillation; foam material and cell size determine tube sizes accommodated and maximum safe speed. As of 2026, inserts accommodating PCR strip tubes alongside microcentrifuge tubes in a single insert have become available, reducing the number of separate formats needed.
<a href="https://mbpinc.net/contact-us">Contact the MBP team</a> today to request a quote and find the right accessories for your vortex mixer.

Vortex Mixer Accessories

Optional Foam Rack for 12 x 15ml tubes (BV1003 model only)

BV1003-T150 by Benchmark Scientific is an optional foam rack that holds 12 x 15mL tubes and attaches to the BenchMixer V2 (BV1003) vortex mixer only.

Optional Foam Rack for 5 x 50 ml tubes (BV1003 model only)

BV1003-T500 by Benchmark Scientific is an optional foam rack attachment for the BenchMixer V2 BV1003 vortex mixer, enabling simultaneous vortexing of 5 × 50 ml conical tubes. Compatible with BV1003 and BV1003-E only — does not fit the Mortexer BV1005 or BenchMixer MP BV1007. Replaces the standard reversible cup head with a tool-free swap. 1 foam rack head per order. Companion 15 ml head: BV1003-T150.

Incubators Accessories

Extra Shelf, stainless steel, for H2505-40

Extra Shelf, stainless steel, for H2505-70

Extra Shelf, stainless steel, for H2505-130

Additional shelf for 45 liter incubators, 1 each

Additional shelf for 180 liter incubators, 1 each

Stacking kit for 180 liter incubator (height of top display approximately 135cm)

IncuView Integrated Microscope Shelf, 45L (For H3565-45 Only)

IncuView Integrated Microscope Shelf, 180L (For H3565-180, 180HD and 180HDO2 Only)

Optional O2 gas regulator

H3565-O2REG by Benchmark Scientific is an optional O2 gas regulator for SureTherm™ CO2 incubators (H3565 series), enabling tri-gas incubation with controlled O2, CO2, and N2. Connects to CGA580 O2 cylinders; 1/4 in tubing adapter included. Used for hypoxia cell culture (1–5% O2), stem cell protocols requiring sub-atmospheric oxygen, and hyperoxia studies. Confirm N2 supply availability for sub-atmospheric O2 control before ordering.

Water Baths Accessories

<h2>What Are Water Bath Accessories?</h2>
&nbsp;
Water bath accessories are the ancillary components that maximize the function, safety, sample capacity, and operational life of laboratory water baths. They fall into five categories: sample holders (tube racks, floating racks, flask trays, concentric ring covers) that organize and stabilize sample containers in the bath; temperature measurement tools (calibrated bath thermometers, RTD probes, temperature data loggers) that verify the bath is performing to specification; coverage and evaporation control items (gable lids, flat covers, hollow bath balls) that reduce heat loss and contamination; water conditioning products (antimicrobial additives, deionized water corrosion inhibitors) that maintain bath water quality; and plumbing components (tubing, hose clamps, insulation kits) for connecting circulating baths to external equipment. Select accessories based on your sample container format, the temperature at which the bath operates (higher temperatures need better coverage), and whether the bath is used for sensitive biological samples (requiring antimicrobial water treatment).
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Microtube Racks: Custom optional racks created to securely accommodate 0.5 mL, 1.5 mL, and 2.0 mL microtubes for efficient sample processing in high densities.
</li>
<li dir="ltr" aria-level="1">
High-Capacity Test Tube Holders: Sturdy racks offered in various setups, accommodating up to 76 x 15 mL tubes or 30 x 50 mL tubes.
</li>
<li dir="ltr" aria-level="1">
Adaptable Tube Holder: An extensive selection of inserts designed for 5 mL, 15 mL, and 50 mL tubes to guarantee uniform thermal treatment for each sample.
</li>
<li dir="ltr" aria-level="1">
Efficient Design: Sturdy, corrosion-proof rack configurations that snugly fit in your water bath chamber to avoid tipping and loss of samples.
</li>
</ul>
&nbsp;
<h2>How to Choose Water Bath Accessories</h2>
&nbsp;
Tube racks and sample holders
Stainless steel tube racks with fixed openings (10 mm, 16 mm, 25 mm hole diameters) hold test tubes and microcentrifuge tubes in the bath upright and submerged to the required depth. Polypropylene tube racks that sink in water (made from a PP blend with higher density than water) are stable in shaking baths; confirm sinking vs. floating designation before purchasing for a shaking water bath application. Floating foam racks (HDPE foam, brightly colored) suspend tubes at the water surface for partial immersion and are suitable for thawing frozen cryovials gently. Flask trays and concentric ring covers accommodate round-bottomed and flat-bottomed Erlenmeyer flasks of 50-2000 mL.
Bath thermometers and temperature verification
Calibrated non-mercury glass thermometers (spirit-filled with red or blue alcohol) for water bath use are available in ranges of 0-50 degrees C and 0-100 degrees C, and verify the bath's setpoint accuracy by independent measurement. Digital reference thermometers with immersion RTD probes (PT100 or PT1000) provide higher accuracy verification (plus or minus 0.1 degrees C) and are required for GLP and cGxP compliance documentation. Traceable calibration certificates with NIST reference are available for digital probe thermometers used in regulated laboratory environments.
Covers and evaporation control
Gable (ridge) lids deflect condensate from the inside surface of the lid to the bath walls, preventing droplets from falling onto open sample vessels. Flat polycarbonate or stainless steel lids are simple and cost-effective, but they accumulate condensate pools that drip. Hollow ball lids (polyethylene bath balls, 35-40 mm diameter, floating in a layer on the bath surface) are particularly effective at reducing evaporation and maintaining temperature while allowing easy sample insertion and removal without removing a rigid lid; they can reduce evaporative loss by over 80% at 60 degrees C compared to an open-top bath. Covers are essential for baths operating above 80 degrees C, where evaporation rates are high.
Antimicrobial additives and water quality
Bacterial, algal, and fungal contamination of bath water occurs readily at 37 degrees C (physiological temperature), producing biofilms on tank walls and heating elements that can cross-contaminate open sample vessels. Quaternary ammonium-based antimicrobial bath additives (added at 1:100 to 1:1000 v/v to deionized water) maintain water clarity and reduce biofilm formation. Corrosion inhibitor additives for stainless steel tanks protect against pitting corrosion when deionized water (which lacks the buffering of tap water and can be mildly aggressive to stainless steel) is used. Always confirm that additives are compatible with your sample type and bath material before use.
Plumbing kits for circulating baths
Circulating baths are connected to external jacketed vessels, reactor jackets, and instruments via flexible silicone or polyurethane tubing, hose barb fittings, and hose clamps. Plumbing kits from Thermo Fisher (Precision bath plumbing packages) and PolyScience include compatible tubing diameters and fittings for their specific circulating bath models. Thermal insulation wrap (foam pipe lagging) on external tubing runs between the bath and jacketed vessel reduces heat loss and improves temperature control at the external application.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Hollow polyethylene bath balls reduce evaporation by over 80% at 60-80 degrees C compared to open-top operation, significantly reducing the frequency of water top-ups and the energy lost through evaporative cooling at high setpoint temperatures. Spirit-filled non-mercury glass thermometers for water baths are calibrated to plus or minus 1 degree C; digital RTD reference probes provide plus or minus 0.1 degrees C accuracy and are required for documented temperature verification in GLP, ISO 9001, and CLIA-regulated environments. Polypropylene tube racks formulated to sink in water are specified for shaking water bath use; a standard floating foam rack will be swept out of position by the agitation mechanism in an orbital shaking bath, making sinking racks essential for shaker applications. Hollow bath ball lids and antimicrobial water conditioning have become standard practice in cell culture labs as replacements for open-top baths and uncontrolled tap water, driven by contamination events and GLP audit requirements.&nbsp;
&nbsp;
Upgrade your immersion heating system now&mdash;explore our water bath accessories and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote.

Optional Rack for 0.5 mL microtubes

SB0012-T5 by Benchmark Scientific is an optional rack holding 40 standard 0.5 ml microtubes for the SB-12L shaking water bath. It supports temperature-controlled orbital shaking from ambient to 80&deg;C at 30&ndash;200 rpm (25 mm orbit), enabling parallel small-volume enzyme, binding, and cell-free reaction workflows in one run.

Optional Rack for 1.5/2.0 mL microtubes

SB0012-T1520 by Benchmark Scientific is an optional rack holding 40 microtubes (1.5 ml or 2.0 ml) for the SB-12L shaking water bath. It enables temperature-controlled orbital shaking of up to 40 microtube-format samples simultaneously across the SB-12L&apos;s 30&ndash;200 rpm / ambient to 80&deg;C operating range.

Hotplate & Stirrer Accessories

<h2>What Are Hotplate and Stirrer Accessories?</h2>
&nbsp;
Hotplate and stirrer accessories are supplementary components for single-position and multi-position hotplate stirrers that improve temperature accuracy, expand vessel compatibility, enable reflux setups, and maintain equipment in working condition. The most important accessory for research-grade hotplate use is an external temperature probe, which monitors actual solution temperature rather than hotplate surface temperature, which can be 20 to 50 degrees C higher than the liquid in the vessel. PTFE stir bars in standard cylindrical, oval, octagonal, cross-shaped, and polygon geometries allow matching of bar shape to vessel type and mixing requirement. Support rods and clamp assemblies secure condensers, separating funnels, and other glassware above the hotplate for reflux chemistry. Magnetic stir bar retrieval wands recover stir bars from flasks without contaminating the solution. An external temperature probe is the single most impactful hotplate stirrer accessory: without one, you are controlling plate temperature, not solution temperature, and the two can differ by 20 to 50 degrees C.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li data-section-id="dpsp0x" data-start="25" data-end="139">Temperature sensors for compatible GHS-series hotplate stirrers, available in standard and glass-coated designs.</li>
<li data-section-id="yvvor4" data-start="140" data-end="248">Sensor support stands and clamps for secure positioning of temperature probes during heating applications.</li>
<li data-section-id="hdqu1" data-start="249" data-end="353">Support rods and clamp sets for mounting laboratory apparatus and accessories above hotplate stirrers.</li>
<li data-section-id="rtdv85" data-start="354" data-end="446">Magnetic stir bars, including standard and pivot ring styles, for efficient sample mixing.</li>
<li data-section-id="1hl26tt" data-start="447" data-end="560" data-is-last-node="">Chemically resistant clamp set options featuring inert PTFE construction for demanding laboratory environments.</li>
</ul>
&nbsp;
<h2>How to Choose Hotplate and Stirrer Accessories</h2>
&nbsp;
External temperature probes
Confirm probe type compatibility with the hotplate stirrer model: most digital hotplate stirrers accept either a PT1000 resistance temperature detector (RTD) or a Type K thermocouple, and these are not interchangeable between models. The probe is inserted directly into the solution and feeds temperature data back to the PID controller to maintain the solution (not the plate surface) at the setpoint. Probe length and sheath material (stainless steel, glass, or PTFE) should be matched to the vessel size and chemical compatibility requirements.
PTFE stir bars: geometry and size
PTFE stir bars are available in cylindrical, oval (egg-shaped), octagonal, cross (X-shape), polygon, and ring geometries. Cylindrical bars are the most common general-purpose format. Octagonal bars provide more turbulent mixing in flat-bottomed vessels than cylindrical bars. Cross-shaped bars improve mixing in round-bottom flasks by preventing the bar from riding the wall. Ring or hoop bars are used for mixing around fixed probes or frits inside the vessel. Stir bar length is selected to match vessel diameter, typically 30 to 50% of vessel inner diameter.
Support stands and clamp sets.
Support stands (rod-and-base assemblies) mount above or adjacent to the hotplate to hold condensers, addition funnels, thermometers, and other glassware in reflux setups. Confirm rod diameter compatibility with the clamp set (most lab glassware clamps fit 12.7 mm or 16 mm rods). Weighted bases provide stability for tall assemblies. Crossbar assemblies allow horizontal positioning of clamps at adjustable heights along the support rod.
Magnetic stir bar retrieval tools
Stir bar retrievers are magnetic wands encased in a non-contaminating sleeve (PTFE or glass) that attract and remove the stir bar from a vessel without inserting fingers or metal into the sample. Available as handheld wands or bench-mounted extractors. An essential accessory for labs processing multiple samples per day, as losing track of stir bars is among the most common minor equipment management issues in bench chemistry.
Replacement sensors and calibration weights
Temperature probes degrade after repeated heating cycles or chemical exposure; replace probes showing drift against a calibrated reference thermometer. For hotplate stirrer models with external calibration weights (balance verification), confirm the weight set is OIML or ASTM traceable for regulated workflows.
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<h2>Specifications Context</h2>
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PTFE stir bars should be inspected regularly for chipped or worn PTFE coating. Bare metal exposure from a chipped bar contaminates the sample with metallic particles and alters the bar's magnetic coupling properties, resulting in reduced mixing efficiency or bar stall at lower speeds. Discard and replace any stir bar showing PTFE damage. For regulated lab environments (GMP, ISO 17025), maintain a stir bar inventory log and retire bars on a scheduled basis. External temperature probes rated for immersion in aqueous solutions should be verified against a calibrated reference thermometer at least annually; probes showing more than 1 degree C deviation should be recalibrated or replaced.&nbsp;
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Optional Rod for Hotplate/Stirrer (H3770 Series)

H3770-ROD by Benchmark Scientific is an optional support rod that mounts onto the H3770 series hotplate/stirrer to provide a vertical attachment point for lab clamps, condenser mounts, burette holders, and overhead accessories during heated stirring operations.