The interior is kept at a nearly fixed temperature with a high humidity of approximately 90%. In addition, cooling is achieved indirectly via the walls of the unit, reducing the drying and oxidation caused by circulated cold air.
All the units in this line are pillar-less, with a depth of 800mm.
W 1200mm

| Deep
| Model Name | IW-K120L-4F |
| Capacity | 630L |
| External Dimensions | 1200×800×1950mm |
| Voltage | 100V |
| Specifications | 130kb |
W 1490mm

| Deep
| Model Name | IW-K150L-4F |
| Capacity | 787L |
| External Dimensions | 1490×800×1950mm |
| Voltage | 100V |
| Specifications | 131kb |
W 1790mm

| Deep
| Model Name | IW-K180L-6F |
| Capacity | 1000L |
| External Dimensions | 1790×800×1950mm |
| Voltage | 100V |
| Specifications | 141kb |
