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| Specification | Sub-ZeroPRO48 | Sub-Zero631RFD |
|---|---|---|
| Annual energy use | Conflicting source valuesSource | 1826 kWh/yearSource |
| Anti-sweat heater switch declared in archive | FalseSource | FalseSource |
| Defrost type | AutomaticSource | AutomaticSource |
| Freezer capacity | 11.73 cu ftSource | 9.23 cu ftSource |
| Fresh-food capacity | 18.37 cu ftSource | 12.8 cu ftSource |
| Manufacturer named in archive | Sub-ZeroSource | Sub-ZeroSource |
| Refrigerator configuration | Side-by-Side w/o Ice thru doorSource | Side-by-Side w/o Ice thru doorSource |
| Reported depth | 24 inSource | 24 inSource |
| Reported height | 84 inSource | 84 inSource |
| Reported width | 48 inSource | 36 inSource |
| Total capacity | 30.1 cu ftSource | 22.03 cu ftSource |