Abstract: A cover for a box containing a fluid includes a top panel with a tuck flap. A perforated end of the tuck flap is coupled to a detachable attachment along a perforated line. The attachment includes instructions for forming the cover and also includes user-fillable labels. When the cover is in an assembled state, the perforated line forms a perforated edge that is tucked between panels of the cover and therefore hidden from view. A front panel of the cover includes an opening having edges. At least portions of the edges are inserted into a peripheral slot of a spigot that is coupled to a bladder contained in the box to provide additional support to the spigot and secure the cover to the box.