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LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
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Front eye-level view of a Fisherbrand Isotemp laboratory refrigerator featuring a stainless steel solid door, horizontal handle, and a top-mounted digital control panel

Fisherbrand Isotemp Laboratory Refrigerator GTT8G25RP8A

Fully Tested & Warrantied*
Brand : Fisherbrand
Product Code : SKU 4380YY REFRIG
Price Match Policy

Shipping

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

Fisherbrand Isotemp General Purpose Laboratory Refrigerator GTFBG25RPSA

Not every laboratory refrigerator is intended for vaccines, blood products, or highly regulated pharmaceutical storage. For many laboratories, the priority is dependable temperature control for reagents, media, buffers, proteins, and routine research materials. The Fisherbrand Isotemp General Purpose Laboratory Refrigerator GTFBG25RPSA was designed specifically for these everyday laboratory applications, providing reliable temperature performance, laboratory-specific features, and energy-efficient operation in a spacious upright cabinet.

With approximately 25 cubic feet (651 L) of storage capacity and a temperature range of 2°C to 10°C, the GTFBG25RPSA is an excellent choice for biotechnology companies, pharmaceutical laboratories, universities, hospitals, clinical laboratories, and industrial research facilities. Its stainless steel solid door, digital controls, and low-heat operation help provide consistent refrigerated storage while protecting valuable laboratory materials.

Many laboratories pair a general-purpose refrigerator like the GTFBG25RPSA with laboratory freezers for frozen sample storage, ultra-low freezers for long-term preservation, biosafety cabinets for sterile sample preparation, and centrifuges to create a complete laboratory workflow.

Fisherbrand Isotemp GTFBG25RPSA Key Features

  • Approximately 25 cu. ft. (651 L) capacity

  • Temperature range: 2°C to 10°C

  • Stainless steel solid door

  • Digital microprocessor temperature controller

  • Adaptive automatic defrost

  • ENERGY STAR® design

  • Natural R290 refrigerant

  • Whisper-quiet operation

  • Rear access port

  • Remote alarm contacts

  • Keyed door lock

  • LED interior lighting

  • Low heat output

  • Refurbished and performance tested by American Instrument Exchange

  • 90-day warranty included

Fisherbrand Isotemp GTFBG25RPSA Overview

Unlike residential refrigerators, the GTFBG25RPSA was engineered specifically for laboratory environments where stable temperatures, dependable airflow, and continuous operation are essential. Its digital microprocessor controller maintains consistent cabinet temperatures while adaptive defrost minimizes temperature fluctuations that can occur during traditional defrost cycles.

The stainless steel solid door helps protect light-sensitive materials while improving temperature stability compared to glass-door units. Combined with quiet operation, low heat output, and environmentally friendly refrigerant, the refrigerator integrates well into busy research laboratories where equipment often operates continuously.

Common Applications

The Fisherbrand Isotemp GTFBG25RPSA is commonly used for storing:

  • Laboratory reagents

  • Prepared media

  • Buffers

  • Protein samples

  • Cell culture reagents

  • Enzymes

  • Research chemicals

  • Diagnostic kits

  • Quality control materials

  • General laboratory supplies

Ideal Laboratory Types

This refrigerator is well suited for:

  • Biotechnology companies

  • Pharmaceutical manufacturers

  • Academic research laboratories

  • Clinical laboratories

  • Hospitals

  • Quality control laboratories

  • Environmental laboratories

  • Industrial research facilities

Laboratories needing dependable everyday refrigerated storage will appreciate its combination of capacity, energy efficiency, and laboratory-specific features.

Why Choose a General Purpose Laboratory Refrigerator?

Although household refrigerators may appear similar, they are not designed for continuous laboratory operation or consistent scientific storage conditions. A laboratory refrigerator provides tighter temperature control, improved airflow, integrated alarms, security features, and components intended for demanding research environments.

The GTFBG25RPSA is particularly well suited for laboratories storing non-critical research materials that require dependable refrigeration but do not require the specialized temperature validation associated with pharmacy or vaccine refrigerators.

Typical Stored Materials

This refrigerator is commonly used for:

  • Laboratory media

  • Buffers

  • Antibodies

  • Proteins

  • Cell culture reagents

  • Enzymes

  • Standards

  • Calibration materials

  • Laboratory chemicals requiring refrigerated storage

Fisherbrand Isotemp GTFBG25RPSA Key Specifications

Capacity

  • 25 cu. ft. (651 L)

Temperature Range

  • 2°C to 10°C

  • Factory setpoint: 5°C

Construction

  • White powder-coated exterior

  • White interior

  • Stainless steel solid door

  • Four adjustable shelves

Refrigeration System

  • Natural R290 refrigerant

  • Adaptive automatic defrost

  • Low heat output

  • ENERGY STAR certified

Monitoring & Controls

  • Digital microprocessor controller

  • Temperature alarm

  • Door ajar alarm

  • Power failure alarm with battery backup

  • Remote alarm contacts

  • Keyed door lock

Electrical Requirements

  • 115V, 60 Hz

Exterior Dimensions

  • 27.75" W × 32" D × 81" H

Interior Dimensions

  • 24" W × 28.5" D × 61.75" H

Weight

  • 392 lbs.

Operating Costs & Energy Considerations

The GTFBG25RPSA utilizes an ENERGY STAR-certified refrigeration system with environmentally friendly R290 refrigerant to reduce operating costs while maintaining dependable laboratory performance. Adaptive defrost technology minimizes unnecessary compressor operation and helps maintain more stable cabinet temperatures throughout daily use. Routine condenser cleaning and adequate ventilation will help maximize efficiency and extend equipment life.

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

Refurbishment & Testing Process

Every Fisherbrand Isotemp GTFBG25RPSA received by American Instrument Exchange undergoes a comprehensive inspection and temperature performance evaluation before shipment. Our technicians verify temperature accuracy using calibrated probes, inspect refrigeration performance, test alarms and controls, replace worn components as needed, and thoroughly clean each refrigerator before delivery.

Laboratories building complete cold storage systems frequently purchase laboratory freezers, ultra-low freezers, biosafety cabinets, centrifuges, and cryogenic storage systems from American Instrument Exchange.

Shipping & Installation Considerations

The Fisherbrand Isotemp GTFBG25RPSA ships by freight from American Instrument Exchange. Before installation, laboratories should verify doorway clearances, available floor space, electrical service, and adequate ventilation around the condenser. Allowing the refrigerator to stabilize at operating temperature before loading valuable materials will help ensure optimal performance.

Fisherbrand Isotemp General Purpose Laboratory Refrigerator GTFBG25RPSA Frequently Asked Questions

What is the Fisherbrand Isotemp GTFBG25RPSA designed to store?

It is designed for general laboratory materials including reagents, media, proteins, buffers, enzymes, and other non-critical research products requiring refrigerated storage.

Is this refrigerator suitable for vaccine or blood storage?

This is a general-purpose laboratory refrigerator. Laboratories storing vaccines, blood products, or regulated pharmaceuticals should verify that the refrigerator meets all applicable regulatory and validation requirements for their specific application.

Why choose a laboratory refrigerator instead of a household refrigerator?

Laboratory refrigerators provide more consistent temperature control, integrated alarms, security features, improved airflow, and components designed for continuous scientific use.

How is the refrigerator tested before shipment?

Every refurbished Fisherbrand Isotemp GTFBG25RPSA is inspected, cleaned, and temperature tested by American Instrument Exchange technicians using calibrated temperature probes to verify refrigeration performance and controller accuracy before shipment.

Testing Procedures for Used and Refurbished Laboratory Refrigerators
Ensure Temperature Stability and Cold Storage Accuracy

Used and refurbished laboratory refrigerators from American Instrument Exchange are thoroughly tested to ensure reliable cold storage performance, temperature accuracy, and compliance with laboratory safety and storage standards. Each unit undergoes a detailed inspection and functional verification to meet the requirements of clinical, pharmaceutical, research, and industrial labs.

Why Testing Used Laboratory Refrigerators Is Essential

Before a laboratory refrigerator is reintroduced into any laboratory setting, it must be carefully tested for:

• Temperature uniformity and stability
• Cooling system integrity and compressor function
• Door seal performance and insulation effectiveness
• Electrical safety and compliance with lab standards

Thorough testing minimizes the risk of temperature excursions, product loss, and system failures—especially critical for storing reagents, vaccines, biological samples, pharmaceuticals, and temperature-sensitive materials.

Our structured testing protocol ensures refurbished lab refrigerators deliver consistent, dependable performance across all makes and models.

Key Testing Procedures for Refurbished and Used Laboratory Refrigerators

1. Initial Visual Inspection
• Check exterior surfaces, hinges, and door gaskets for wear, corrosion, or damage
• Inspect power cords, plugs, and control panels for fraying or visible defects
• Verify that shelves, racks, and internal compartments are present and functional

2. Functional Testing
• Power on the refrigerator and verify that display screens, alarms, and controls function properly
• Test door latches and sealing mechanisms to ensure secure closure and insulation
• Run preliminary temperature cycles to observe startup behavior and cooling response

3. Temperature and Stability Testing
• Test internal temperature sensors and controllers using thermometers/probes
• Monitor temperature at multiple points within the chamber over an extended period
• Verify accuracy across user-defined setpoints (e.g., +4°C, +2°C to +8°C range)

4. Cooling System and Compressor Evaluation
• Test compressor startup, cycling, and operating noise levels
• Inspect condenser coils and fans for proper function and cleanliness
• Check refrigerant pressure (if applicable) and confirm there are no leaks or system inefficiencies

5. Electrical Safety and Compliance Checks
• Ensure all internal and external electrical components are properly grounded
• Perform insulation resistance and leakage current tests
6. Final Quality Assurance Checklist
• Run full operational tests over a 24-hour period
• Document temperature logs, control responsiveness, and system performance
• Complete a detailed service report

All refurbished laboratory refrigerators from American Instrument Exchange are backed by our rigorous testing standards and quality commitment. From vaccine storage to reagent preservation, you can count on consistent cold storage performance from day one.

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

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

Why Choose a Refurbished Laboratory Refrigerator 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 refrigerator 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, lab-safe 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 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., +2°C to +8°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 under real-world conditions
• Final cleaning, inspection, and performance validation
• Detailed service report with temperature logs, repair notes, and certification of refurbishment

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, reagents, and research materials 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.