A litter box kit is provided. The litter box kit comprises a top cover a base mountable to the top cover to form a chamber for accommodating an animal, the base comprising: a bottom section and side walls extending upward from the bottom section to define a base cavity, wherein at least one of the side walls comprises an opening a cartridge sized and configured to be insertable through the opening and into the base cavity, the cartridge comprising: a housing comprising a bottom part, side walls, and a removable top part defining a cartridge chamber and litter material provided within the cartridge chamber and being exposed below the chamber upon removal of the top part and a garbage bag dispenser comprising: tubular plastic stock and an annular body comprising a compartment for housing the tubular plastic stock, the body being removably mountable to the base and sized and positioned about an exit opening provided in the base such that the cartridge is removable through the exit opening and into a portion of the tubular plastic stock for disposal.
