A paper product dispenser assembly comprising: a hood having a hood coupling component; a first rear housing member configured for selective coupling with said hood, said first rear housing member having a first coupling component for cooperating with said hood coupling component for releasably coupling said hood and said first rear housing member to one another, said first rear housing member and said hood, when coupled, jointly defining a first housing adapted to hold a roll of paper product therein; a second rear housing member configured for selective coupling with said hood in place of said first rear housing member, said second rear housing member having a second coupling component for cooperating with said hood coupling component for releasably coupling said hood and said second rear housing member to one another, said second rear housing member and said hood, when coupled, jointly defining a second housing adapted to hold a roll of paper product therein; and a dispensing member (DS, 39, 46) suitable to be at least partially disposed within said first housing and suitable to be at least partially disposed within said second housing and adapted to selectively dispense the paper product respectively from within said first housing or from within said second housing, wherein: said first rear housing member has a first pair of oppositely located side walls, a first rear wall extending between said first pair of side walls, and at least one resilient side tab extending outwardly from one of said first pair of side walls and configured to engage one or both external side walls of a recessed space for mounting said first rear housing member within the recessed space, said first rear housing member further including a front opening and a front panel surrounding said front opening, and said second rear housing member has a second pair of oppositely located side walls, a second rear wall extending between said second pair of side walls, and a mounting feature on said second rear wall for mounting said second rear housing member on an external wall. a hood having a hood coupling component; a first rear housing member configured for selective coupling with said hood, said first rear housing member having a first coupling component for cooperating with said hood coupling component for releasably coupling said hood and said first rear housing member to one another, said first rear housing member and said hood, when coupled, jointly defining a first housing adapted to hold a roll of paper product therein; a second rear housing member configured for selective coupling with said hood in place of said first rear housing member, said second rear housing member having a second coupling component for cooperating with said hood coupling component for releasably coupling said hood and said second rear housing member to one another, said second rear housing member and said hood, when coupled, jointly defining a second housing adapted to hold a roll of paper product therein; and a dispensing member (DS, 39, 46) suitable to be at least partially disposed within said first housing and suitable to be at least partially disposed within said second housing and adapted to selectively dispense the paper product respectively from within said first housing or from within said second housing, wherein: said first rear housing member has a first pair of oppositely located side walls, a first rear wall extending between said first pair of side walls, and at least one resilient side tab extending outwardly from one of said first pair of side walls and configured to engage one or both external side walls of a recessed space for mounting said first rear housing member within the recessed space, said first rear housing member further including a front opening and a front panel surrounding said front opening, and said second rear housing member has a second pair of oppositely located side walls, a second rear wall extending between said second pair of side walls, and a mounting feature on said second rear wall for mounting said second rear housing member on an external wall. said first rear housing member has a first pair of oppositely located side walls, a first rear wall extending between said first pair of side walls, and at least one resilient side tab extending outwardly from one of said first pair of side walls and configured to engage one or both external side walls of a recessed space for mounting said first rear housing member within the recessed space, said first rear housing member further including a front opening and a front panel surrounding said front opening, and said second rear housing member has a second pair of oppositely located side walls, a second rear wall extending between said second pair of side walls, and a mounting feature on said second rear wall for mounting said second rear housing member on an external wall.