Retrofittable locking option for the blu'box 52 series
Item no. 4000514 (for blu'box 52 gn series)
Item no. 4000379 (for blu'box 52 gn/en series)
Possibility of fixing 2 blu'box containers of the 52 series on top of each other
(Can be released again without tools).
Variant: For blu'box 52 gn and ge/en series (replacement of standard stacking corners and rails).