If you’re comparing an Arctiko ULT freezer, you’re usually past the “What is a -86°C freezer?” stage. You’re in decision mode: Which Arctiko ULUF model fits our sample volume, space, power setup, and backup expectations? That’s exactly what this guide is built to answer.
Who is Arctiko? Arctiko is a Denmark-based manufacturer focused on temperature-controlled biomedical and laboratory storage, with decades of specialization in ultra-low temperature systems. The ULUF line is positioned for labs that need reliable Arctiko -86 freezer performance with practical differentiators: compact single-compressor ULT models for point-of-use storage and TRUE DUAL™ redundancy in uprights for higher-risk, higher-volume storage programs.
This guide covers the 9 Arctiko ULUF models available at MediDepot from the 0.25 cu.ft. ULUF P10 MV benchtop unit through the 28.7 cu.ft. ULUF P830 MV upright, plus the legacy ULUF 125 undercounter model. Chest freezers (SUF/SF) exist in the broader Arctiko range, but this post stays focused on the ULUF lineup for model-level shopping clarity.
Quick Start: Browse Arctiko and ULT Categories
If you want to compare specs live, start with the Arctiko brand page. If you’re comparing across brands, use the ULT category page.
Table of Contents
- Arctiko ULT Technology: What Sets the ULUF Series Apart
- ULUF Model Comparison Table — Full Lineup (P10 MV to P830 MV)
- Key Differentiators vs Competing ULT Brands
- Sizing Your Arctiko ULT: Practical Decision Workflow
- Ordering Arctiko from MediDepot
- Smart Solutions
- Explore Related MediDepot Guides
- External References
- Frequently Asked Questions (FAQ)
Arctiko ULT Technology: What Sets the ULUF Series Apart
Most “ULT freezer buying guides” stop at capacity and temperature. That’s not enough for ULT procurement. Two labs can store the same sample types and still need different ULT architectures because of room heat load, redundancy policy, and how often samples are accessed. The ULUF series is easiest to understand through four technology filters: compressor design, redundancy, refrigerant sustainability, and electrical flexibility.
Single Compressor Technology (Compact Models)
Arctiko’s compact ULUF models are built around a single-compressor concept in the benchtop/countertop segment. Practically, that usually means a smaller footprint, simpler service architecture, and point-of-use placement for labs that don’t want every retrieval to require walking to a centralized freezer room. In the MediDepot ULUF lineup, the compact group includes:
- ULUF P10 MV (0.25 cu.ft.)
- ULUF P50 MV (1.76 cu.ft.)
- ULUF P65 MV (1.9 cu.ft.)
- ULUF P90 MV (3.10 cu.ft.)
TRUE DUAL™ Technology (Upright Models)
For larger ULT programs, the biggest operational fear is the failure scenario: if a compressor fails overnight, how long do you have before sample integrity is at risk? Arctiko’s upright ULUF models emphasize TRUE DUAL™ dual-compressor redundancy, designed to keep storage protected even if one compressor goes down, buying time for response and service.
The MediDepot upright TRUE DUAL™ group includes:
- ULUF P400 MV (13.4 cu.ft.)
- ULUF P510 MV (17.5 cu.ft.)
- ULUF P620 MV (21.5 cu.ft.)
- ULUF P830 MV (28.7 cu.ft.)

Natural Refrigerant & Energy Efficiency
ULT freezers are long-running assets, so sustainability and operating cost are not “marketing add-ons.” The ULUF series is positioned with natural refrigerants (low GWP) and energy-conscious design features that matter for labs operating multiple units and trying to reduce HVAC strain. If energy use is a major decision factor, treat it as a total cost issue, not just “watts on paper.”
For a cost lens (purchase + operating + backup planning), pair this guide with: ULT freezer vs lab freezer cost of ownership & backup plan.
Multi-Voltage Compatibility (110–240V)
Many ULUF MV models are built for multi-voltage operation across common lab environments (110–240V). This matters for multi-site organizations, global facilities, or labs with mixed infrastructure. It can reduce wrong-order risk (ordering the “wrong voltage”) and simplify procurement when equipment may be deployed across locations.
👉 Explore Related Post: Before You Buy: Voltage Compatibility, Plug Types & Electrical Requirements
ULUF Model Comparison Table - Full Lineup (P10 MV to P830 MV)
This is the “model shopping” heart of the guide. If you came here for Arctiko ULUF P65 MV review-style clarity or to compare ULUF P65 vs P510, start here and use the decision notes under each table.
Compact / Benchtop Models (Single Compressor)
| Model | Capacity | Temp Range | Form Factor | Best Fit |
|---|---|---|---|---|
| ULUF P10 MV | 0.25 cu.ft. (7L) | -25°C to -86°C | Benchtop | Point-of-use backup, single-vial / micro-batch storage, workstation-level ULT access |
| ULUF P50 MV | 1.76 cu.ft. (50L) | -25°C to -86°C | Benchtop | Small labs, satellite facilities, compact -86°C storage without dedicating floor space |
| ULUF P65 MV | 1.9 cu.ft. (54L) | -40°C to -86°C | Benchtop / Undercounter | Undercounter placement, small lab ULT programs, “compact ULT freezer under 2 cu ft” searches |
| ULUF P90 MV | 3.10 cu.ft. (~88L) | -25°C to -86°C | Countertop | Bridge model: more capacity than P65 while staying countertop; good for mid-volume point-of-use needs |
| ULUF 125 (Legacy) | 3.3 cu.ft. (~94L) | -40°C to -86°C | Undercounter | Legacy undercounter ULT option while available; practical for bench integration and low-profile rooms |
Where the P90 MV fits: If you’re asking “ULUF P90 MV specifications” or comparing “P90 vs P400,” you’re usually deciding between a larger countertop footprint and a true upright. The P90 is the bridge: it keeps the compact placement logic while adding meaningful volume.
Upright Models (TRUE DUAL™)
| Model | Capacity | Temp Range | Redundancy | Best Fit |
|---|---|---|---|---|
| ULUF P400 MV | 13.4 cu.ft. (400L) | -40°C to -86°C | TRUE DUAL™ | Mid-size biobank, clinical lab, centralized storage with redundancy requirement |
| ULUF P510 MV | 17.5 cu.ft. (500L) | -40°C to -86°C | TRUE DUAL™ | Large research lab, pharma settings, higher sample volume + stronger safety margin |
| ULUF P620 MV | 21.5 cu.ft. (620L) | -40°C to -86°C | TRUE DUAL™ | High-throughput biorepository, long-term preservation with organized rack storage |
| ULUF P830 MV | 28.7 cu.ft. (815L) | -40°C to -86°C | TRUE DUAL™ | Large-scale biobank and centralized storage where capacity and protection are top priorities |

Compact vs Upright - Decision Framework
Use this simple framework (it solves most procurement debates fast):
- Choose compact if you need point-of-use access, have limited floor space, and your sample volume is small to moderate. Compact models also reduce “traffic” on your main freezer.
- Choose upright TRUE DUAL™ if your sample value is high, storage is centralized, and redundancy is non-negotiable. If you have an “after-hours alarm policy,” uprights usually align better.
- If you’re torn: ask whether your biggest pain is “we waste time walking to the freezer” (compact wins) or “we can’t risk a failure event” (upright wins).
View the Full Arctiko ULUF Lineup
If you want to browse all ULUF models (and related Arctiko refrigeration), use the brand collection:
View Arctiko Collection Browse Medical & Laboratory Freezers
Key Differentiators vs Competing ULT Brands
Buyers often ask “Arctiko vs Thermo Fisher ULT freezer” or “Arctiko vs Stirling Ultracold.” Those comparisons matter, but the most procurement-friendly approach is to compare engineering philosophies and workflow fit, not to assume one brand is universally best.
Arctiko vs Thermo Fisher TSX / Revco
Thermo Fisher has broad institutional penetration and deep service ecosystems. Arctiko’s appeal often shows up when buyers want a strong mix of redundancy (TRUE DUAL™ in uprights), flexible power compatibility, and natural refrigerant sustainability. If you’re comparing cost and backup planning across tiers, use: cost of ownership & backup plan guide.
Arctiko vs Stirling Ultracold
Stirling systems use a different cooling cycle philosophy (free-piston). Arctiko’s ULUF uprights emphasize dual-compressor redundancy for fail-safe behavior. In practice, your choice often comes down to your facility’s service preference, heat load tolerance, and how you define “failure protection.”
Arctiko vs NuAire Blizzard / other compact ULT options
Compact ULT is a unique segment: some competitors rely on cascade approaches in smaller footprints, while Arctiko’s compact lineup focuses on single-system architecture and multi-voltage flexibility in MV models. If you’re building a broader ULT procurement list across brands, browse: Ultra-Low (ULT) Freezers. For a cross-brand medical refrigeration reference point, see Accucold medical refrigeration.
Sizing Your Arctiko ULT: Practical Decision Workflow
This section is meant to feel like a lab manager’s checklist, not marketing. Use it for a clean internal justification memo or an apples-to-apples comparison between models.
Step 1 - Sample Inventory & Growth Projection
- Count current inventory by storage format (boxes, racks, cryo vials, tubes).
- Estimate growth over 12 months (clinical trial timelines, accession rate, new studies).
- Define “must stay” vs “rotating” samples. Rotation changes door-open frequency.
Helpful sizing reference: laboratory freezer size comparison guide.
Step 2 - Space & Infrastructure
- Footprint: Do you have benchtop space (compact) or floor space (upright)?
- Heat load: ULT freezers add heat to the room, confirm HVAC capacity if you’re adding multiple units.
- Power readiness: Confirm circuit capacity and outlet requirements early.
👉 Explore Related Post: voltage compatibility before buying.
Step 3 - Redundancy & Backup Strategy
This is where many labs get stuck: “We want redundancy” is not a plan. A plan is: how alarms are detected, who responds, where samples go, and what temperature threshold triggers a transfer.
- Built-in redundancy: TRUE DUAL™ uprights provide redundancy behavior aligned with risk-heavy storage.
- Backup options: CO2 backup controller options and alarm forwarding can support after-hours protection.
- Facility-level plan: generator access, emergency contact chain, transfer freezer availability.
For the failure-scenario approach (“what happens at 2 AM?”), use: ULT backup planning guide.

Ordering Arctiko from MediDepot
MediDepot carries the full ULUF MV lineup plus the legacy ULUF 125 model. If you’re purchasing for a biobank, research facility, or multi-unit program, the fastest path is to shortlist 2–3 models, then request a quote with your room constraints and sample capacity assumptions.
- Browse Arctiko: Arctiko collection
- Compare across brands: ULT freezer category
- Request a quote: Request a Quote
Recommended “Shortlist” by Use Case
If you want a fast starting point, these are common ULUF shortlists:
- Minimal footprint / workstation ULT: ULUF P10 MV
- Small lab / satellite clinic ULT: ULUF P50 MV or ULUF P65 MV
- Bridge between compact and upright: ULUF P90 MV (or legacy undercounter ULUF 125 while available)
- Centralized storage with redundancy: ULUF P510 MV or ULUF P620 MV
- Largest capacity biobank: ULUF P830 MV
Smart Solutions
Need Help With Budget, Coverage, or Peace of Mind?
If you’re building a cold storage program or standardizing multiple ULT units, these tools can help you plan purchases and reduce risk.
Explore Related MediDepot Guides
- ULT Freezers vs Standard Lab Freezers: Cost of Ownership & Backup Plans
- ULT Freezer Features, Benefits & Buying Tips (Complete Guide)
- Medical Freezer Temperature Ranges: -20°C, -40°C, -80°C Explained
- Laboratory Freezer Size Comparison Guide
- Voltage Compatibility, Plug Types & Electrical Requirements
External References
- Arctiko Official ULUF ULT Page
- ISBER Best Practices for Biorepositories
- Energy Star (energy efficiency reference)
Frequently Asked Questions (FAQ)
Q1: What is Arctiko TRUE DUAL™ technology?
TRUE DUAL™ is Arctiko’s dual-compressor system used in upright ULUF models (P400 MV, P510 MV, P620 MV, P830 MV). It is designed to maintain protective storage even if one compressor fails, buying time for service response and sample protection.
Q2: What is the difference between ULUF P65 MV and ULUF P510 MV?
P65 MV is a compact benchtop/undercounter model (1.9 cu.ft., single-compressor architecture). P510 MV is a full-size upright (17.5 cu.ft.) with TRUE DUAL™ redundancy. Choose based on sample volume, floor space, and redundancy requirements.
Q3: What about the ULUF P90 MV, where does it fit?
P90 MV bridges compact and upright. It offers more capacity than the P65 MV while remaining a countertop-style unit, ideal for labs that need more than 2 cu.ft. but don’t have floor space (or budget) for an upright.
Q4: Can Arctiko ULT freezers be air shipped?
Compact models are often selected for faster deployment and point-of-use installation. For shipping method and lead time, confirm on the product page or request a quote for your destination and timeline.
Q5: What is the pull-down time for Arctiko upright ULT models?
Arctiko upright ULUF models are positioned for fast pull-down to operational setpoints. For model-specific pull-down behavior and room conditions, use the spec sheet on each product page or request a quote for verification.
Q6: Are Arctiko ULT freezers multi-voltage?
Many ULUF MV models are designed for multi-voltage operation (commonly 110–240V) for flexible deployment across sites. Always confirm the electrical specification and circuit requirements for your specific model before ordering.
Q7: How does Arctiko compare to Thermo Fisher ULT freezers?
Thermo Fisher is a major incumbent with broad institutional ecosystems. Arctiko is often chosen for TRUE DUAL™ redundancy in uprights, compact point-of-use ULT options, and sustainability/energy positioning. The “best” option depends on your facility service model, sample risk profile, and total cost of ownership.
Q8: Does MediDepot carry all Arctiko ULT freezer models?
MediDepot carries the ULUF MV series covered in this guide, including compact and upright models. Browse the full Arctiko collection for current availability.
Q9: What backup options do Arctiko freezers offer?
Backup planning can include compressor redundancy (TRUE DUAL™ on uprights), CO2 backup controller options, alarm forwarding, and facility-level backup plans. Use our decision guide: ULT backup plan and cost-of-ownership.
Q10: Is the ULUF 125 still available?
Yes. ULUF 125 is the legacy undercounter ULT model (3.3 cu.ft.) and is available while stock lasts.
Need Help Choosing Between Models?
If you’re deciding between compact vs upright, or comparing P65 vs P510 for sample protection, request a quote with your inventory and room constraints. We’ll help you shortlist the right ULUF configuration.
*All technical specifications and workflow recommendations reflect general laboratory practice guidance. Always follow your manufacturer's Instructions for Use (IFU), your facility's Standard Operating Procedures (SOPs), and any applicable regulatory requirements for your sample type and application.
**Reviewed for workflow practicality by MediDepot Clinical Support Team. Always follow manufacturer instructions and your facility protocol.
***Disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult your physician, healthcare provider, or qualified medical professional before using any medical products or following health-related guidance. MediDepot products do not diagnose, treat, cure, or prevent any medical condition.