A toilet module comprising: a shroud that includes first and second opposite edges and a toilet associated therewith, a first toilet module attachment assembly comprising a retainer member that is adapted to be secured to a wall, wherein the retainer member includes a wall attachment flange and a press fit portion extending generally inwardly from the wall attachment flange, wherein when the retainer member is secured to a wall a channel is defined between the wall and the press fit portion, and a seal member that includes a bulge portion that is received in the channel of the retainer member; wherein said retainer member is a first retainer member that is adapted to be secured to a first wall, wherein said wall attachment flange is a first wall attachment flange and said press fit portion is a first press fit portion extending generally inwardly from the first wall attachment flange, wherein when the first retainer member is secured to the first wall a first channel is defined between the first wall and the first press fit portion, and wherein said seal member is a first seal member that includes said bulge portion in the form of a first bulge portion that is received in the first channel of the first retainer member, wherein the first edge of the shroud is secured by at least one of the first retainer member or the first seal member, and a second attachment assembly comprising a second retainer member that is adapted to be secured to a second wall, wherein the second retainer member includes a second wall attachment flange and a second press fit portion extending generally inwardly from the second wall attachment flange, wherein when the second retainer member is secured to the second wall a second channel is defined between the second wall and the second press fit portion, and a second seal member that includes a second bulge portion that is received in the second channel of the second retainer member, wherein the second edge of the shroud is secured by at least one of the second retainer member or the second seal member. a shroud that includes first and second opposite edges and a toilet associated therewith, a first toilet module attachment assembly comprising a retainer member that is adapted to be secured to a wall, wherein the retainer member includes a wall attachment flange and a press fit portion extending generally inwardly from the wall attachment flange, wherein when the retainer member is secured to a wall a channel is defined between the wall and the press fit portion, and a seal member that includes a bulge portion that is received in the channel of the retainer member; wherein said retainer member is a first retainer member that is adapted to be secured to a first wall, wherein said wall attachment flange is a first wall attachment flange and said press fit portion is a first press fit portion extending generally inwardly from the first wall attachment flange, wherein when the first retainer member is secured to the first wall a first channel is defined between the first wall and the first press fit portion, and wherein said seal member is a first seal member that includes said bulge portion in the form of a first bulge portion that is received in the first channel of the first retainer member, wherein the first edge of the shroud is secured by at least one of the first retainer member or the first seal member, and a second attachment assembly comprising a second retainer member that is adapted to be secured to a second wall, wherein the second retainer member includes a second wall attachment flange and a second press fit portion extending generally inwardly from the second wall attachment flange, wherein when the second retainer member is secured to the second wall a second channel is defined between the second wall and the second press fit portion, and a second seal member that includes a second bulge portion that is received in the second channel of the second retainer member, wherein the second edge of the shroud is secured by at least one of the second retainer member or the second seal member.