So Low | Flammable Material Storage Manual Defrost Freezers | Laboratories & Industrial Chemical Safety
At Alto Med Supply, we offer So-Low Flammable Material Storage Manual Defrost Freezers designed for laboratories, research facilities, and industrial environments that require the safe storage of volatile chemicals and reagents.
These specialized laboratory freezers are engineered to reduce the risk of internal explosions by eliminating potential ignition sources inside the storage chamber.
Critical electrical components, including thermostats, switches, and compressors are isolated from the interior compartment, creating a spark-free environment that helps protect both personnel and facilities when storing flammable materials.
These flammable material storage freezers are built to maintain consistent performance, typically operating within a stable temperature range of -15°C to -25°C.
The manual defrost system helps maintain thermal stability by eliminating the internal heat cycles commonly associated with auto-defrost units, which can affect temperature-sensitive chemicals.
Each freezer is equipped with a microprocessor digital controller for precise temperature regulation and real-time monitoring.
Integrated audible and visual alarms notify staff immediately of temperature deviations or power interruptions, helping safeguard valuable laboratory inventory.
Designed for durability in demanding laboratory settings, these units feature high-density urethane foam insulation for improved temperature retention and energy efficiency.
The interior is constructed with durable finishes such as painted steel or anodized aluminum to withstand regular laboratory use.
Fixed shelving allows for organized chemical storage, while gravity-flow air circulation supports uniform cooling without internal fans.
For additional security, each freezer includes a heavy-duty solid door with a keyed lock to restrict access to authorized personnel.
Operating on a standard 115V electrical connection, So-Low flammable material storage freezers integrate easily into existing laboratory infrastructure.
By offering trusted cold storage solutions from leading manufacturers, Alto Med Supply helps laboratories and industrial facilities maintain safe, compliant, and reliable storage for temperature-sensitive and flammable materials.
Key Features
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Flammable Material Storage Freezer: Designed for safe storage of volatile chemicals and laboratory reagents in industrial and research environments.
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Spark-Free Interior Design: Eliminates ignition sources inside the chamber to help reduce the risk of internal explosions.
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Isolated Electrical Components: Keeps thermostats, switches, and compressors outside the storage area for added safety.
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Manual Defrost System: Prevents heat fluctuations caused by auto-defrost cycles, protecting sample integrity.
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Digital Temperature Controller: Microprocessor system provides precise control and real-time temperature monitoring.
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Audible & Visual Alarms: Alerts users immediately to temperature changes or power loss to protect stored inventory.
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High-Density Insulation: Urethane foam insulation improves temperature retention and energy efficiency.
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Durable Interior Construction: Features painted steel or anodized aluminum for long-lasting performance in lab settings.
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Organized Storage Design: Fixed shelving helps maximize space and keeps materials neatly arranged.
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Gravity-Flow Air Circulation: Ensures uniform cooling without internal fans that could introduce ignition risks.
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Lockable Solid Door: Heavy-duty door with keyed lock restricts access to authorized personnel only.
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Standard 115V Operation: Easy integration into existing laboratory and industrial electrical systems.
Specifications
| Model Details |
MV23-4UCFMSF |
DHH20-14SDFMS |
DHH20-17SDFMS |
DHH20-20SDFMS |
DHH20-30SDFMS |
| Capacity |
4 Cu. Ft. 138 L |
14 Cu. Ft. 396 L |
17 Cu. Ft. 481 L |
20 Cu. Ft. 566 L |
30 Cu. Ft. 849 L |
| Temp Range |
-10°C to -30°C |
-15°C to -25°C |
-15°C to -25°C |
-15°C to -25°C |
-18°C to -25°C |
| Ext. Dimensions |
33.5" × 24.5" × 29" |
23.75 × 24.75 × 73 in |
30.75 × 28.5 × 67.75 in |
30.75 × 29 × 74.5 in |
35.75 × 35.5 × 72.5 in |
| Int. Dimensions |
26" × 18.5" × 22.5" |
48 × 44 × 162 cm |
26.25 × 22.5 × 58.25 in |
25.75 × 21.75 × 65 in |
32 × 22.5 × 65 in |
| Compressor |
Hermetic |
| Air Circulation |
Gravity Flow |
| Defrost Method |
Manual |
| Refrigerant |
R-134A |
R290 |
R290 |
R290 |
R404A |
| Ext. Material |
Painted Steel |
| Int. Material |
Painted Steel |
| Insulation |
Urethane Foam |
High Density Urethane |
High Density Urethane |
High Density Urethane |
Polyurethane Foam |
| Lockable Door |
Keyed Lock |
| Door Material |
Insulated Steel |
| Porthole |
3/4" Diameter |
| Leveling Legs |
4 |
| Storage |
3 Wire Removable Baskets |
6 Fixed Shelves |
6 Fixed Shelves |
6 Fixed Shelves |
4 Fixed Shelves |
Shipping Weight |
220 lbs |
195 lbs |
220 lbs |
220 lbs |
380 lbs |
Voltages Available |
115V, 60Hz 1 Phase |
115V, 60Hz 1 Phase |
115V, 60Hz 1 Phase |
115V, 60Hz 1 Phase |
115V, 60Hz 1 Phase |
| Amperage |
15A Dedicated 1.4A Running |
15A Dedicated 3.5A Running |
15A Dedicated 6A Running |
15A Dedicated 6A Running |
15A Dedicated 6A Running |
NEMA Configuration |
NEMA 5-15 |
Temp Control |
Digital Display |
Digital Display |
Digital Display |
Digital Display |
Mechanical Thermostat |
| Min / Max Temp |
Display & Reset |
Display & Reset |
Display & Reset |
Display & Reset |
— |
| Alarm |
High/Low Temp |
High/Low Temp |
High/Low Temp |
High/Low Temp |
— |
| Alarm Relay |
Dry Contacts |
Dry Contacts |
Dry Contacts |
Dry Contacts |
— |
| Compliance |
NFPA / OSHA Guidelines 45 & 70 |
| Certification |
UL Listed |
ETL Listed |
ETL Listed |
ETL Listed |
UL Listed |
| Labor Warranty |
2 Year |
2 Year |
2 Year |
2 Year |
1 Year |
| Parts Warranty |
2 Year |
2 Year |
2 Year |
2 Year |
1 Year |
Compressor Warranty |
2 Year |
2 Year |
2 Year |
2 Year |
1 Year |
Product Manual
User manual for So-Low Flammable Material Storage Manual Defrost Freezer MV23-4UCFMSF can be found here.
User manual for So-Low Flammable Material Storage Manual Defrost Freezer all other models can be found here.
Shipping
- Free curbside delivery (Contiguous United States Only)
- Delivery ETA 5–10 business days
- We also offer white glove engineer delivery with commissioning if required. Please contact us for a quote.
- If you require faster shipping or shipping anywhere other than the contiguous United States, please contact us for a shipping quote.
Warranty
This product comes with a 1-year manufacturer’s parts warranty, a 1-year labor warranty on the unit, and a 1-year warranty on the compressor.
Please note that select models include an extended 2-year warranty. Refer to the individual product specifications to confirm the exact warranty coverage for each model.
Important Notes
The warranty applies only to the original purchaser of a new product.
It does not cover:
- Normal wear and tear
- Damage due to misuse, alteration, tampering, negligence, accidents, lack of maintenance, unauthorized repair, or any other cause beyond the reasonable control of the manufacturer.
If you have any faults with your items, contact us and we will help resolve any issues.
Conditions: Warranty is void if the product is altered, misused, or repaired by unauthorized personnel. Damage from improper maintenance or unsuitable environmental conditions is also excluded.
Important: Product Inspection Upon Delivery
Please inspect all items carefully for any damage that may have occurred during shipping immediately after unpacking and report within 24 hours of receiving the product.
Returns
We at Alto Med Supply are committed to ensuring you are delighted with every purchase. However, if you need to make a return, please reach out to us at support@altomedsupply.com, and we will guide you through the return process.
Here are a few important points to note:
- You have the right to return your order within 14 calendar days of receiving the goods. Beyond this period, returns cannot be accepted.
- Products must be returned unused and in their original packaging.
- Return shipping charges and a 25% restocking fee apply.
- Bespoke items cannot be returned unless damaged or faulty.
For more information, please refer to our Terms and Conditions.
Please view our full returns and refund policy here.