Container of a fluid substance and a transport system therefor

Container (1) of a fluid substance, comprising a can (2) having a neck (4) defining an opening (3), a valve element (5) comprising a valve cup (6) supporting a movable hollow stem (7) against an elastic element (8) between a first stable closing position and a second unstable position of fluid delivery through a cavity (7A) of the stem (7), the cavity (7A) of the stem, when the stem is in the dispensing position, being in communication with the interior of the can (2), characterized in that the can (2) is fixed to a support base (10) of the container (1), the base comprising a support surface (14) provided with a recess (11) defined by a first centering surface (11A) configured to center the container (1) on a valve cup (6) of a further identical container on which the container (1) can be piled on, by a second support surface (11B) of stable support of the container (1) on the valve cup (6) and by a third surface (12) recessed with respect to the second surface (11B) configured to house, protecting it, the stem (7) an aerosol valve of the further container (1A).