| Owner: | Canadian National Railway |
| Type: | Container |
| AAR Class: | : |
| AAR Type: | U503 |
| Detail Info: | Containers, Mechanical Refrigerator, 40 ft. and less than 42 ft., outside length, O.S. Width 8' and under, Outside Height over 9' and to 9'6" inclusive |
| Max Gross Weight: | 74800 |
| Load Limit: | 64800 |
| Dry Capacity: | 2384 |
| Ext L/W/H: | 40' 0" / 8' 0" / 9' 6" |
| Int L/W/H: | 38' 0" / 7' 6" / 8' 4" |
| User Notes: | EcoTherm |
