3.9 cu ft compact refrigerator. Uses 18% less energy than the federal limit for its class. #521 of 526 compact fridges 3–4 cu ft, by yearly cost.
Source: EPA ENERGY STAR Certified Residential Refrigerators dataset, data.energystar.gov. Refreshed Oct 24, 2026.
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Zephyr fridges: Authorized dealers (Zephyr Find a Dealer)
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The EPA record lists no additional model numbers.
UPC: 646328013218
The EPA certifies this model number in more than one configuration. This page covers: 15 - Compact Refrigerator-Freezer - automatic defrost with Bottom-Mounted freezer. Other: 13 - Compact refrigerator-freezers - automatic defrost with top-mounted freezer (330 kWh/yr), 13A - Compact All-Refrigerators - automatic defrost (179 kWh/yr), 3 - Freestanding Compact Cooler (69 kWh/yr).
ENERGY STAR certified 2025-05-21. On the market since 2025-05-30. EPA record 4429294.
| Type | Compact Refrigerator |
| Product class | 15 - Compact Refrigerator-Freezer - automatic defrost with Bottom-Mounted freezer |
| Total capacity | 3.9 cu ft |
| Adjusted volume | 5.2 cu ft |
| Height × width | 34.8 × 23.8 in |
| Counter depth | No |
| Compact | Yes |
| Built-in | No |
| Ice maker | No |
| Through-door dispenser | No |
| Defrost | Automatic |
| Connected (smart) | No |
| Annual energy use | 330 kWh |
| Federal max for its class | 401 kWh |
| Markets | United States, Canada |
Source: EPA ENERGY STAR Certified Residential Refrigerators, record 4429294. Most Efficient reflects the EPA field "meets most efficient criteria".
Rule: certified compact fridges within 1 cu ft of this one (2.9 to 4.9 cu ft), other brands only, lowest energy first.
| Brand | Model | Size | Energy | Cost |
|---|---|---|---|---|
| Fisher & Paykel | RS2435SB* | 4.6 cu ft | 106 kWh | $19 at 18.16¢/kWh/yr |
| Liebherr | UR3750 | 4.7 cu ft | 115 kWh | $21 at 18.16¢/kWh/yr |
| Liebherr | UR3650 | 4.4 cu ft | 125 kWh | $23 at 18.16¢/kWh/yr |
| Liebherr | URP3653 | 4.1 cu ft | 125 kWh | $23 at 18.16¢/kWh/yr |
| Fisher & Paykel | RS2435SB*T* | 4.6 cu ft | 137 kWh | $25 at 18.16¢/kWh/yr |
| Fisher & Paykel | RB36S | 3.7 cu ft | 150 kWh | $27 at 18.16¢/kWh/yr |
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