Tuf-Tower components are not interchangeable with other manufacturers’ units.
| MODEL | DESCRIPTION | WT |
| TT36U | Tuf-Tower – Upper Unit – 30″ W x3′ H x 6′ L | 64 |
| TT66U | Tuf-Tower – Upper Unit – 30″ W x6′ H x 6′ L | 104 |
| TT38U | Tuf-Tower – Upper Unit – 30″ W x3′ H x 8′ L | 72 |
| TT68U | Tuf-Tower – Upper Unit – 30″ W x6′ H x 8′ L | 112 |