| Unloading Door | Each Gravity Box comes with an easy to use unloading door equipped with a metering door, providing a smoother, more consistent flow of material. It also allows you to fine tune the amount of material leaving the G |
| $0.00 |
| Front Ladder | The front ladder has a slightly angled incline for easier climbing, allowing you to look inside the Gravity Box with less effort and more stability. |
| $0.00 |
| Optional Grain Shield Tarp Kit | The Grain Shield Tarp Kit is an option for all of the Gravity Box sizes. This ratchet-free locking system not only protects the contents from blowing away and from inclement weather, but also locks quickly and easily so you can head out sooner. |
| $0.00 |
| Road Lights | Every Gravity Box comes equipped with road lights for safer road travel. |
| $0.00 |
| Sight Windows | Conveniently located beside the unloading door, these viewing windows allow you to see the current level of material inside the Gravity Box. |
| $0.00 |
| Optional Extension Kit | Available on all models, the optional extension kits increase the capacity of your MK Martin Gravity Box decreasing the amount of trips you need to make. |
| $0.00 |
| Optional Rear Ladder | The optional rear ladder gives another access point for operators to look into the Gravity Box. |
| $0.00 |