Fisher Isotemp 425F freezer

Brand : Fisher

Product Code : SKU 2554CC FREEZER

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Price Match Policy

Shipping

All products ship from our 30,000 sq. ft. Haverhill, MA warehouse

Fisherbrand Isotemp 13-986-425F Flammable Material Storage Freezer

Laboratories that store flammable solvents, volatile chemicals, and combustible reagents require more than dependable temperature control—they need equipment specifically engineered to reduce ignition risks inside the storage chamber. The Fisherbrand Isotemp 13-986-425F Flammable Material Storage Freezer is designed for the safe storage of temperature-sensitive flammable materials, combining laboratory-grade freezing performance with a spark-free interior that complies with laboratory safety requirements for flammable storage.

With a 27 cubic foot storage capacity, the 13-986-425F is an excellent choice for pharmaceutical manufacturers, biotechnology companies, chemical laboratories, universities, hospitals, and industrial research facilities storing flammable solvents, standards, reagents, and research chemicals requiring frozen storage. Unlike a standard laboratory freezer, this model is specifically engineered so that electrical components inside the cabinet cannot ignite flammable vapors released by stored materials.

Many laboratories pair a flammable material freezer like the 13-986-425F with laboratory refrigerators for refrigerated chemicals, biosafety cabinets for sample preparation, laboratory freezers for routine frozen storage, and chemical fume hoods when handling volatile compounds.

Fisherbrand Isotemp 13-986-425F Key Features

27 cu. ft. storage capacity
Temperature range approximately -12°C to -20°C
Spark-free interior construction
Manual defrost operation
Solid insulated door
Two fixed shelves
Bottom storage tray
Three door shelves
Magnetic door gasket for an airtight seal
Heavy-duty laboratory construction
Designed for storage of flammable materials
Refurbished and performance tested by American Instrument Exchange
90-day warranty included

Fisherbrand Isotemp 13-986-425F Overview

The 13-986-425F is purpose-built for laboratories storing volatile chemicals that require frozen storage temperatures. Its spark-free interior separates stored materials from potential ignition sources, reducing the risk of igniting flammable vapors generated by solvents and other combustible laboratory materials.

Inside the cabinet, two fixed shelves, a bottom tray, and door shelving provide organized storage while allowing laboratory personnel to separate chemicals by compatibility or application. The manual-defrost refrigeration system eliminates automatic warming cycles, helping maintain stable storage temperatures for sensitive materials.

Common Applications

The Fisherbrand Isotemp 13-986-425F is commonly used for storing:

Flammable laboratory solvents
Organic standards
Volatile reagents
Chemical reference materials
Research chemicals
Analytical standards
Flammable pharmaceutical compounds
Temperature-sensitive industrial chemicals

Ideal Laboratory Types

The 13-986-425F is well suited for:

Pharmaceutical manufacturers
Biotechnology companies
Chemical research laboratories
Academic chemistry laboratories
Environmental laboratories
Industrial R&D facilities
Petrochemical laboratories
Quality control laboratories

Laboratories routinely working with volatile chemicals will benefit from the additional safety features provided by a dedicated flammable material storage freezer.

Why Choose a Flammable Material Storage Freezer?

A conventional laboratory freezer may contain electrical components inside the storage compartment that could ignite flammable vapors under certain conditions. A flammable material storage freezer is engineered with a spark-free interior, reducing the risk of ignition inside the cabinet while providing dependable frozen storage for volatile laboratory chemicals.

It is important to note that a flammable material storage freezer is not the same as an explosion-proof freezer. Flammable material freezers are intended to safely store volatile materials inside the cabinet, whereas explosion-proof freezers are designed for installation in hazardous locations where ignitable vapors may also be present outside the unit. Laboratories should select the appropriate equipment based on their specific safety requirements.

Typical Stored Materials

The Fisherbrand Isotemp 13-986-425F is commonly used to store:

Alcohols
Organic solvents
Chemical standards
Analytical reagents
Flammable reference materials
Laboratory chemicals requiring frozen storage

Fisherbrand Isotemp 13-986-425F Key Specifications

Capacity

27 cu. ft.

Temperature Range

Approximately -12°C to -20°C

Construction

Spark-free interior
Solid insulated door
White powder-coated exterior
Two fixed shelves
Bottom storage tray
Three door shelves

Refrigeration System

Manual defrost
Static cooling design
CFC- and HCFC-free refrigeration system and insulation

Safety Features

Spark-free interior construction
Airtight magnetic door gasket
Designed for storage of flammable materials
Meets applicable laboratory safety requirements for flammable material storage (model family)

Electrical Requirements

Hardwired installation may be required depending on facility and model configuration. Verify electrical requirements prior to installation.

Exterior Dimensions

Approximately 35 in. W × 33 in. D × 78 in. H (verify prior to installation)

Interior Dimensions

Sized to provide 27 cu. ft. of usable storage volume

Weight

Freight shipment; verify shipping weight prior to installation.

Operating Costs & Energy Considerations

Because the 13-986-425F operates at conventional laboratory freezer temperatures, operating costs are significantly lower than those of ultra-low freezers. Manual defrost operation eliminates automatic warming cycles while helping maintain stable storage temperatures. Periodic manual defrosting and routine condenser cleaning will help maximize refrigeration efficiency and long-term reliability.

Specifications compiled from Fisherbrand manufacturer literature and American Instrument Exchange product information.

Refurbishment & Testing Process

Every Fisherbrand Isotemp 13-986-425F received by American Instrument Exchange undergoes a comprehensive inspection and temperature performance evaluation before shipment. Our technicians verify refrigeration performance using calibrated digital temperature probes, inspect door gaskets, shelving, thermostat operation, compressor function, and cabinet integrity, replacing worn components as necessary before thoroughly cleaning the freezer. Additional testing can be performed to meet customer-specific requirements when requested.

Laboratories outfitting chemical storage areas frequently purchase chemical fume hoods, laboratory refrigerators, laboratory freezers, biosafety cabinets, and centrifuges from American Instrument Exchange.

Shipping & Installation Considerations

The Fisherbrand Isotemp 13-986-425F ships by freight from American Instrument Exchange. Before installation, laboratories should verify doorway clearances, available floor space, electrical requirements, and compliance with local fire and laboratory safety codes. Proper placement and ventilation will help ensure dependable long-term operation.

Frequently Asked Questions

What makes the 13-986-425F different from a standard laboratory freezer?

Its spark-free interior is specifically designed to reduce the risk of igniting flammable vapors released by stored chemicals, making it suitable for flammable material storage.

Is this an explosion-proof freezer?

No. This is a flammable material storage freezer, not an explosion-proof freezer. It is intended for the safe storage of flammable materials inside the cabinet. Explosion-proof freezers are designed for hazardous locations where ignitable vapors may be present in the surrounding room.

Why is manual defrost preferred for laboratory chemical storage?

Manual-defrost systems avoid periodic warming cycles associated with automatic-defrost freezers, helping maintain more consistent temperatures for temperature-sensitive chemicals.

How is the 13-986-425F tested before shipment?

Every refurbished Fisherbrand Isotemp 13-986-425F is inspected and temperature tested by American Instrument Exchange technicians. Refrigeration performance, temperature accuracy, cabinet integrity, and overall operation are verified before shipment, and additional customer-requested testing can be accommodated.

Testing Procedures for Used and Refurbished Laboratory Freezers

Cold Storage Reliability from American Instrument Exchange

At American Instrument Exchange, every used and refurbished laboratory freezer we offer undergoes a comprehensive multi-point testing protocol to ensure optimal performance, temperature stability, and long-term reliability. Our rigorous testing procedures are designed to meet the demanding standards of biomedical, pharmaceutical, research, and clinical environments—so you can trust your freezer to protect your valuable samples and materials.

Why Testing Refurbished Laboratory Freezers Is Critical

Before any laboratory freezer is placed back into service, it must be carefully tested for:

Consistent temperature control and uniformity across internal zones
Compressor functionality and refrigeration system performance
Seal integrity and insulation efficiency to prevent temperature loss
Electrical safety and alarm system operation

Thorough testing minimizes the risk of temperature excursions, equipment failure, and product loss—especially for temperature-sensitive items like reagents, biological samples, and vaccines.

Our structured testing protocol ensures that all used and refurbished laboratory freezers meet or exceed manufacturer specifications and industry expectations.

Key Testing Procedures for Laboratory Freezers

1. Visual and Structural Inspection

Examine the exterior for dents, corrosion, or physical damage
Check door gaskets, hinges, and latches for wear and functionality
Inspect power cords, control panels, and internal compartments

2. Functional Startup and System Check

Power on the unit to verify startup sequence, control panel functionality, and display readability
Test programmable settings, alarms, and door-open sensors
Ensure proper door closure and sealing performance

3. Temperature Performance and Stability Testing

Test temperature sensors using certified thermometers or probes
Monitor chamber temperature at multiple points over extended run periods
Verify temperature uniformity and accuracy across common lab setpoints (e.g., -20°C, -30°C)

4. Compressor and Refrigeration System Evaluation

Test compressor startup, cycling behavior, and operating noise
Check condenser coils, evaporators, and fans for performance and cleanliness
Inspect for refrigerant leaks or pressure issues that may affect efficiency

5. Electrical Safety and Compliance Verification

Confirm proper grounding and insulation of all electrical components
Conduct safety testing to meet laboratory equipment electrical standards
Verify functionality of alarms for power loss, temperature excursions, and system faults

6. Final Quality Assurance and Runtime Validation

Conduct multi-day test cycle to confirm stable performance under continuous use
Record temperature data, alarm responses, and compressor cycling metrics
Complete final inspection and prepare detailed service documentation

Reliable Cold Storage, Backed by Testing Excellence

Each refurbished laboratory freezer from American Instrument Exchange is tested and certified for cold storage accuracy, safety, and performance. Whether upright, undercounter, flammable-material rated, or specialty-purpose, our lab freezers are restored to meet real-world research and clinical demands.

Trust American Instrument Exchange for dependable, tested, and warrantied laboratory refrigeration—ready to support your lab from day one.

Repair and Refurbishment Protocol for Used Laboratory Freezers
Certified Cold Storage Performance from American Instrument Exchange

At American Instrument Exchange, every used laboratory freezer we offer is subjected to a comprehensive repair and refurbishment protocol. Whether it’s a general-purpose lab freezer, flammable-material grade unit, or undercounter model, our goal is to restore each system to peak performance—ensuring consistent temperature control and reliable operation.

Why Choose a Refurbished Laboratory Freezer from American Instrument Exchange?

• Fully tested for cold storage accuracy and operational safety
• Backed by a warranty
• Cost-effective alternative to new refrigeration equipment
• Sustainably refurbished to reduce environmental impact
• Serviced by expert technicians with decades of laboratory equipment experience

Step-by-Step Refurbishment Protocol

Every laboratory freezer from American Instrument Exchange follows a detailed, multi-stage process to ensure top-tier performance and reliability:

1. Initial Intake & Inspection

• Visual inspection for dents, corrosion, or structural damage
• Mechanical check of door hinges, gaskets, seals, and internal components
• Documentation of missing parts or areas requiring repair or replacement

2. Cleaning and Decontamination

• Internal and external cleaning using non-abrasive cleaners
• Decontamination/cleaning of all surfaces to remove biological or chemical residues
• Thorough cleaning of shelving, drawers, and removable interior parts

3. Mechanical and Electrical Repairs

• Replacement or repair of worn mechanical parts (door latches, seals, hinges, etc.)
• Inspection and restoration of control interfaces, thermostats, sensors, and displays
• Evaluation of wiring, relays, fuses, and power supply components for safety and integrity

4. Refrigeration System and Compressor Evaluation

• Testing of compressor function, condenser coils, and evaporators
• Inspection for refrigerant leaks and pressure performance (if applicable)
• Verification of proper airflow, fan operation, and defrost cycles

5. Temperature Calibration and Performance Testing

• Testing of temperature sensors and control boards
• Verification of temperature stability and uniformity throughout the chamber
• Testing of multiple setpoints (e.g., -20°C to -30°C) over extended operating periods

6. Safety and Compliance Checks

• Inspection of grounding and electrical insulation per lab safety standards
• Testing of alarm systems (if applicable) for temperature excursions or power failure

7. Final Quality Control and Documentation

• Multi-day operational test
• Final cleaning, inspection, and performance validation
• Detailed service report with temperature logs and repair notes

Trust the Experts at American Instrument Exchange

With over 50 years of industry experience, American Instrument Exchange is a leading provider of high-quality refurbished laboratory equipment. Our proven laboratory refrigerator refurbishment protocol ensures consistent, accurate cold storage—so you can safeguard your samples with confidence.

Warranty Information

All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,

Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”

Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.

Return & Cancellation Policy

American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.

Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.

Ongoing and Extended Support Options

American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.

For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.

For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.

How do you test and recondition the equipment?

Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.

How do products ship from American Instrument Exchange?

We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.

Return and order cancellation policy

American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.

Are discounts available for educational or non-profit institutions, or for bulk purchases?

Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.

How does your price matching policy work?

We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.

Can I see the equipment in person before committing to a purchase?

Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.

1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.

Can I ship products that I purchased elsewhere to American Instrument for repair?

Yes – please see our repair services page for more information.