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MIDSCI is your trusted source for American‑made lab supplies that help support compliance with the Federal Buy American Act and related federal purchasing requirements.

As a family‑owned U.S. laboratory supplier since 1983, we proudly partner with domestic manufacturers to provide high‑quality lab supplies, chemicals, equipment, and instruments made right here in the United States. With a Midwest‑based warehouse and representatives across the country, we deliver reliable products backed by real people and real support.

From everyday lab consumables and reagents to equipment and precision instruments, MIDSCI helps labs run efficiently, stay compliant, and support U.S. manufacturing. Whether you’re purchasing for a government facility, federally funded research program, or private lab that values domestic sourcing, MIDSCI makes it easy to buy American without sacrificing quality or service.

Contact us for assistance with Buy American–compliant sourcing, documentation, and product recommendations.

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Hoefer® Standard and Preparative Combs for Mini Vertical Systems

 

Compatible with SE300 MiniVE, SE260, and the SE250 Series Vertical Electrophoresis Systems.

 

Precision machined from Teflon®, which is highly resistant to acids, bases, and all commonly used buffer systems. An important benefit of Teflon® combs, compared to other types, is that they are easily removed while maintaining gel integrity. They are lightweight and virtually unbreakable when used with reasonable care. Some combs have microtiter spacing for use with multi-channel pipettes. (See Specifications.)

 

Standard Combs come attached to a standard back, which produces maximum well depths of 25 mm, except for the 28-well combs, which produce well depths of 15 mm.

  • 9- and 18-well Standard Combs have microtiter spacing for use with multichannel pipettes.
  • Preparative Combs have adjustable comb backs (10, 15, and 25 mm depth) and form 1 large preparative well plus 1 or 2 small reference wells.

Proudly made in the USA! Click here for more made in America products!

Item#:
ASHOFRCOMBS1


Hoefer® Combs for SUB25 Submarine Gel Electrophoresis Systems

 

Available in multiple tooth configurations and thicknesses to suit various sample volumes and well sizes. Hoefer® combs ensure sharp, consistent, well formation for accurate, reproducible results.

Proudly made in the USA! Click here for more made in America products!

Item#:
ASHOFRCOMBS10

Bio-Pure Biodegradable Reagent Reservoirs

  • 100% biodegradable, eco-friendly
  • Trough within a trough design maximizes sample recovery
  • Pour spout corners
  • Graduations on inside wells

Proudly made in the USA! Click here for more made in America products!

Item#:
ASRESIVOIR4

Lab Armor® Bead Bath

Bead Baths from Lab Armor® are designed with the user in mind and are optimized to work with Lab Armor® Bath Beads. Bead Bath performs all the essentials, including warming, thawing, incubating, chilling and does so while maintaining a constant temperature just like a water bath. These baths deliver exceptional temperature uniformity up to 80°C. The baths are available in 6 L, 14 L, and 20 L sizes, with and without beads included. 

  • Uniform Temperatures
    • With Bead Bath designed specifically for beads, temperatures are consistent and uniform everywhere in the bath. Thermal uniformity is an amazing ±5 °C at 37 °C and ± 1 °C at 65 °C. Since Bead Bath won't boil off like water, or pose danger of combustion like oil, it is ideal for most applications from 37°C to 400 °C.
  • Fast Start
    • Bead Bath gets up and running faster and you never need to turn it off. There is nothing to evaporate. Unlike a standard bead-filled water bath, Bead Bath allows you to achieve a new set temperature quickly, without long warm up delays, so you can make quick adjustments.
  • Stays Organized
    • Unlike water baths that require racks, floats and bottleneck weights, Bead Bath naturally holds things in place without accessories. The types and kinds of vessels that can be used with the Bead Bath aren't limited to water-tight containers. So you can safely incubate multiwall plates and petri dishes-or thaw samples without fear of water wicking under the lids. And vessels can be set into the beads at any angle for better thermal optimization.
  • Low Maintenance
    • Water baths must be routinely monitored, cleaned and maintained. While it is a good idea to keep an eye on Bead Bath, it rarely needs attention. A bi-weekly or monthly spritz of a biodegradable disinfectant is usually sufficient.

Specifications

Item #74309-70674300-70674309-71474300-71474309-72074300-720
Unit Size6 Liters14 L20 L
BeadsIncluded:
5L Lab Armor Beads
Not IncludedIncluded:
12L Lab Armor Beads
Not IncludedIncluded:
15L Lab Armor Beads
Not Included
Bead Fill Line5 L12 L15L
Operating Temp RangeAmbient +5°C to 80°C
Temperature UniformityMidrange - 1.0°C
Temperature SensitivityMidrange - 0.1°C
Exterior Dimensions (WxDxH)15.9 × 12.3 × 8.5 in.
404 × 312 × 216 mm
15.9 × 18.5 × 8.5 in.
404 × 470 × 216 mm
15.9 × 23.4 × 8.5 in.
404 × 594 × 216 mm
Interior Dimensions (WxDxH)12 × 6.1 × 6 in.
305 × 155 × 152 mm
12 × 12.1 × 6 in.
305 × 307 × 152 mm
12 × 17.1 × 6 in.
305 × 434 × 152 mm
Weight (Without Beads)13.0 lbs | 5.9 kg18.0 lbs | 8.2 kg22.0 lbs | 10.0 kg
Electrical100-120 VAC, 50/60 Hz, 3.0 Amps100-120 VAC, 50/60 Hz, 4.5 Amps100-120 VAC, 50/60 Hz, 6.0 Amps
Warranty1-year for Beads | 2-years for Baths

Proudly made in the USA! Click here for more made in America products!

Item#:
ASBEADBATH

Reagent Reservoir Cooler 

Reagent Reservoir Cooler - Benchtop Cooling of Reagents

  • Extend benchtop working time and keep reagents cool for up to 3 hours.
  • Reagents are kept at ~5°C for approximately 3 hours
  • No need for a cumbersome ice bath, the frozen non-toxic gel is contained in a sealed molded cavity.
  • Extra cold incubation time
  • Extends safe working time for temperature-sensitive reagents
  • 100 mL and 25 mL Reservoirs fit perfectly and snugly onto the Cooler, ensuring uniform cooling.

Proudly made in the USA! Click here for more made in America products!

Item#:
ASRESIVOIR8


Hoefer® Standard Format Glass Plates for Vertical Systems

 

Standard format glass plates are for SE660, SE600X Chroma, SE600, SE640, SE410, and SE400 Vertical Gel Electrophoresis Units.

 

Run as many as four 0.75, 1.0, or 1.5 mm thick gels on SE600 Series units and two gels on the SE400 Series at one time under identical conditions using the double gel capacity Divider Plates. Insert a divider plate between the glass plates that make up a single gel sandwich. Place spacers on each side of the divider plate to form two gel cavities for pouring gels. This two gel “club sandwich” fits into the same casting stand and seals perfectly.


Hoefer® PlateMate Glass Plate Washer and Storage Kit

 

Dramatically reduces glass plate loss due to chipping and cracking. Each holder can hold either ten 18 cm wide plates in the long direction or twenty 8 cm wide plates in the short direction. The adaptor can be placed in three different slots, labeled to refer to the length of the plates: 8, 10, or 12 cm. 

  • Glass plates fit securely into the plate holders' grooves for safe washing, rinsing, and storage
  • Stainless steel handles let you carry plate holders easily and set them safely into the washing bath
  • Accommodates forty 8 cm tall or twenty 18 cm wide plates
  • Holds as many as twenty 10.5 cm tall plates with the optional SE103 long plate adapter accessory 

Includes

  • Polypropylene Washing Tank, 1/ea
  • Plate Holders with Handles and Dust Cover, 2 sets
  • Long Plate Adapters, 2/pk
  • Holders and Adapters, 1/ea 

Each holder can support either ten SE600 series glass plates in the long direction or twenty SE250 glass plates in the short direction. An optional adapter (included in the PlateMate Washer and Storage Kit) is available to enable each holder to accept ten SE260 or miniVE glass plates.

 

Liquid Capacity of Tank

  • 5 liters to cover 10 x 8 cm and/or 10 x 10.5 cm plates (for the SE250, SE260, or miniVE).

Proudly made in the USA! Click here for more made in America products!

Item#:
ASHOFRSGPLTS


Hoefer® Glass and Alumina Plates for Mini Vertical Systems

 

Small Glass and Alumina Plates for Mini Vertical Units.


Compatible with SE300 MiniVE, SE260, and the SE250 Series Vertical Electrophoresis Systems. (see notes below). 

This set includes precision-crafted glass and alumina plates for electrophoresis applications. Includes a variety of notched and rectangular plates in 10 x 8 cm and 10 x 10.5 cm sizes, ideal for customizing your vertical gel setup.

*Alumina plates are not recommended for use with the Hoefer® miniVE™ Vertical Protein Electrophoresis and Blotting System. 
 

Hoefer® PlateMate Glass Plate Washer and Storage Kit

 

Dramatically reduces glass plate loss due to chipping and cracking. Each holder can hold either ten 18 cm wide plates in the long direction or twenty 8 cm wide plates in the short direction. The adaptor can be placed in three different slots, labeled to refer to the length of the plates: 8, 10, or 12 cm.

  • Glass plates fit securely into the plate holders' grooves for safe washing, rinsing, and storage
  • Stainless steel handles let you carry plate holders easily and set them safely into the washing bath
  • Accommodates forty 8 cm tall or twenty 18 cm wide plates
  • Holds as many as twenty 10.5 cm tall plates with the optional SE103 long plate adapter accessory 

Includes

  • Polypropylene Washing Tank, 1/ea
  • Plate Holders with Handles and Dust Cover, 2 sets
  • Long Plate Adapters, 2/pk
  • Holders and Adapters, 1/ea 

Each holder can support either ten SE600 series glass plates in the long direction or twenty SE250 glass plates in the short direction. An optional adapter (included in the PlateMate™ Washer and Storage Kit) is available to enable each holder to accept ten SE260 or miniVE glass plates. 

Liquid Capacity of Tank

  • 5 liters to cover 10 x 8 cm and/or 10 x 10.5 cm plates (for the SE250, SE260, or miniVE). 

Proudly made in the USA! Click here for more made in America products!

Item#:
ASHOFRGAPLTS

Disposable Reagent Reservoirs

  • Disposable and sterile
  • Unique "trough within a trough" maximizes reagent recovery
  • Convenient pour-off spouts on all four corners
  • A wide base provides stability and avoids spills
  • Graduated marks on inside wall
  • Superior design provides stronger sidewalls

Proudly made in the USA! Click here for more made in America products!

Item#:
ASRESIVOIR5


Currently due to the severe backorder, we are not entering/accepting orders for RSV-L175-S05.

Replacement ITEM# RSV-L175-N10 (non-sterile but can be autoclaved to achieve sterility).
Available for immediate shipment. We apologize for any inconvenience.
 
Please feel free to reach out to your rep or customer service if you have any questions.


Texan Reagent Reservoirs

  • Improved design
  • Vol graduations to 150 mL
  • a reinforced base that won't wobble on the counter, preventing spills
  • a new easy-to-open latch that can be manipulated with one hand
  • greater clarity for improved visibility of contents

Texan reagent reservoirs are reusable -- an environmentally sound alternative to disposable reagent reservoirs. Their extra-large capacity means fewer refills and time saved. The V-shaped basin is compatible with both eight- and twelve-place multiple pipettors with minimal reagent waste. Lids are removable -- attached with ball and socket hinges -- and latch tightly for secure storage of left-over reagents. With lids closed, Texan reagent reservoirs are stackable. A perimeter ridge on the lid prevents sliding. Construction is clear, chemical-resistant, autoclavable polypropylene. Molded graduation marks provide Vol indication at 25, 50, 75, 100, 125, and 150 mL.

Available sterile and non-sterile. Sterile reagent reservoirs are supplied in bags of 5, nonsterile in bags of 10, both within outer packages of 100.
 

Proudly made in the USA! Click here for more made in America products!

Item#:
ASRESIVOIR6


Hoefer® Spacers for Dual and Air Cooled Vertical Systems

 

Gel Spacers for SE400 and SE600 Series Vertical Electrophoresis Systems.

 

Engineered for consistent gel casting, these precision-machined spacers are made from high-strength, chemically resistant plastics. Available in three lengths (8, 16, and 24 cm) and multiple thicknesses (0.75 mm, 1.0 mm, 1.5 mm) to accommodate various gel formats.

All 1.0 mm spacers are white for quick identification during setup.

 

Proudly made in the USA! Click here for more made in America products!

Item#:
ASHOFRSPACERS


Well Plate Stands

 

These Adjustable Well Plate Stands are designed to improve pipetting accuracy and user comfort by positioning microplates at an optimal viewing angle. Ideal for routine laboratory workflows, these stands help reduce strain while improving visibility and precision during pipetting.

 

Item WPAJ-1000 features an adjustable design that allows the microplate angle to be set up to 45º, offering flexibility to suit individual preferences and tasks. Its compact footprint, measuring just 6 x 4.5 x 2.5 inches (D × W × H), makes it an excellent choice for crowded benchtops.

 

Item WPST-1000 provides a fixed 30º tilt, offering a convenient and comfortable angle for viewing samples and pipetting with ease.

 

Both items include a neoprene pad and rubber mounting to securely hold the microplate in place and prevent slipping of both the plate and stand during use.

 

*Well Orienters are sold separately.
 

Proudly made in the USA! Click here for more made in America products!

Item#:
ASWELLPLATESTAND


Hoefer® T-Spacers for Mini Vertical Systems

 

Compatible with SE300 MiniVE, SE260, and the SE250 Series Vertical Electrophoresis Systems.

 

Ensure accurate gel thickness and leak-free casting with precision-milled T-spacers. All spacers are precision-machined from durable plastics for high chemical resistance and optimum tensile strength. These spacers provide consistent alignment and long-term durability for mini vertical systems.

 

Available in multiple lengths (8 cm and 10.5 cm) and thicknesses (0.75 mm, 1.0 mm, and 1.5 mm) to suit your specific gel requirements.

 

Proudly made in the USA! Click here for more made in America products!

Item#:
ASHOFRTSPACE
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