Your box is an integrated part of the ventilation system.
The boxes for the Aspiration system and for the Pressure system are especially designed with slots in the sidewalls, closed sides in the pallet and staggered shelves between the long and the short side. See attached images.
The boxes for the so called “letterbox” ventilation system are provided with closed sidewalls and a double pallet bottom. See attached images.
Next to the described box types above there are also possibilities for other boxes, like steel wire mesh boxes and crates.
Please feel free to contact us for more information.