Features
- Unique Aitchison sponge seed distribution system in gentle and accurate
- Calibration and changing from large to small seeds is an easy task
- Unique Aitchison slimline castings and inverted T-boot.
- Stainless steeel fertilizer pipes.
- Stronger stepped axles and pivots
- 125mm / 5" row spacing creates perfect results

| 4120C(T) | 4124CT / 4124CTE | 4128CT | |
| Overall width | 2.92m / 9.6ft | 3.42m / 11.2ft | 3.92m / 12.8ft |
| Overall height | 1.75m / 9.6ft | 1.75m / 5.7ft | 1.75m / 5.7ft |
| Weight empty | 1350kg / 2976lb | 1550kg / 3417lb | 2115kg / 4663lb |
| Fertilliser box capacity | 450lt / 12.7 bu | 540lt / 1.3 bu | 630lt / 18.8 bu |
| Seed box capacity | 450lt / 12.7 bu | 540lt / 1.3 bu | 630lt / 18.8 bu |
| Sowing width | 2.5m / 8.2ft | 3.0m / 9.8ft | 3.5m / 11.5ft |
| No. Tines | 20 | 24 | 28 |
| Row spacing | 125mm / 5" | 125mm / 5" | 125mm / 5" |
| Frame stagger | 410mm | 410mm | 410mm |
| Transport kit | Optional | √ | √ |
| Light kit | √ | √ | √ |
| Hectare metre | √ | √ | √ |
| Safety rail | √ | √ | √ |
| Rodent stop | √ | √ | √ |
| Tow hitch | √ | √ | √ |