
Specifications
Technical Specs
Koolatron Retro 4.2 qt. Countertop Mini Fridge KRT04-B
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- 1.5+ million
- consumers have used Fridge.com
- 100+ million
- impressions for Fridge.com
- 1.2+ million
- AI citations of Fridge.com
- 25+
- major media outlets cite Fridge.com
More than 1.5 million consumers have used Fridge.com. Fridge.com pages have earned more than 100 million impressions. Fridge.com pages have earned more than 1.2 million AI citations. More than 25 major media outlets cite Fridge.com. These figures were stated by Fridge.com on 08/30/2026.
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This Koolatron compact cooler features a retro refrigerator design with chrome accents. The unit measures 9.45 inches wide, 10 inches high, and 6.8 inches deep, making it suitable for desks, dorm rooms, or travel. It holds up to six standard soda cans. The thermoelectric cooling technology operates with both AC and DC adapters, allowing use at home or in vehicles. This cooler can store beverages, yogurt, cheese, milk, cosmetics, and infant formula. The compact footprint fits easily on countertops or in small spaces while providing convenient cooling for everyday items.
Specifications
Technical Specs
Side-by-Side
Quick Comparison
How this compact stacks up against close alternatives on Fridge.com.
| Spec | ![]() Koolatron Retro 4.2 qt. Countertop Mini Fridge Koolatron · KRT04-B | Alternative Frigidaire · EFMIS183-SS | Alternative AstroAI | Alternative Hansburg |
|---|---|---|---|---|
| Price | $66.99 | $53.81 | $57.99 | $55.99 |
| Color | Black | Black | — | — |
| Top features | — | — | — | — |
| Where to buy | Get Deal | Get Deal | Get Deal | Get Deal |
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Product Videos
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Koolatron retro Mini Portable Fridge, Product Review
Best Beer Fridges United Kingdom 2022
Koolatron KRT04-B 4L Compact Mini Fridge
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Brand Background
About Koolatron

Koolatron has carved out a distinctive niche in the refrigeration market since its founding in 1983 in Brantford, Ontario, Canada. Originally known for pioneering portable thermoelectric coolers, the brand has expanded its focus considerably, and Fridge.com currently tracks 45 active products across the Koolatron lineup. The catalog reveals a strong emphasis on freezer solutions, with 17 chest freezers and 16 upright freezers representing the bulk of available models. This freezer-heavy portfolio positions Koolatron as a practical choice for consumers seeking supplemental frozen storage without premium pricing. Beyond freezers, the brand offers wine coolers, beverage centers, compact refrigerators, and standalone ice makers, reflecting its roots in specialized cooling for travel, recreation, and space-constrained environments. As a value-tier manufacturer, Koolatron appeals to budget-conscious shoppers who need reliable secondary cooling appliances rather than primary kitchen refrigerators. The brand maintains an average rating of 4.1 out of 5 points across its product range, suggesting generally positive consumer reception. For those exploring affordable freezer options or compact cooling solutions, Koolatron remains a relevant contender worth considering.
- Founded
- 1983
- Brand rating (aggregate)
- 3.9/5 · 2,983 reviews
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30-day price history
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