Abstract: A wall installation connection box unit including a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, which sleeve portion peripherally surrounds a sanitary component mounting space, which space is accessible via an open front end face of the sleeve portion, a functional surface body including a functional surface, and a connection device which is configured for releasable fastening of the functional surface body to the base portion in different axial levels of the functional surface and includes at least one connection structure on the base portion radially outside the sleeve portion and a connection body cooperating with the connection structure, which connection body is user-operable via an actuation interface to be movable relative to the connection structure and to the functional surface body between a released position and a fastened position.

Abstract: A wall installation connection box unit, including a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, which sleeve portion peripherally surrounds an installation component mounting space, which space is accessible via an open front end face of the sleeve portion, an extension sleeve which is configured for coaxial arrangement on the sleeve portion and axial pushing back relative to the sleeve portion, and a retaining structure which allows axial pushing back of the extension sleeve on the sleeve portion from a mounting position to an end use position on variable axial level and retains the extension sleeve in the end use position on the sleeve portion.

Abstract: A sanitary wall installation connection box unit, including a box housing body having a rear-side base portion and a sleeve portion projecting to the front from the base portion, which sleeve portion peripherally surrounds a sanitary component mounting space, which space is accessible via an open front end face of the sleeve portion, and a connector body disposed on the base portion of the box housing body, which connector body includes a sanitary component connection contour facing the sanitary component mounting space, a fluid line connection interface structure accessible on an outer side of the box housing body, a fluid conduit structure for fluid connection of the fluid line connection interface structure to the sanitary component connection contour and at least one electric line feed-through opening leading from an outer side of the connector body through the connector body to the sanitary component mounting space.

Abstract: A wall installation connection box unit, including a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, and a connector body disposed on the base portion. The sleeve portion peripherally surrounds an installation component mounting space, which space is accessible via an open front end face of the sleeve portion. The connector body includes an installation component connection contour facing the installation component mounting space and a conduit connection interface structure accessible on an outer side of the box housing body. Illustratively, the sleeve portion and the base portion of the box housing body are integrally formed from a synthetic foamed material, and the connector body is embedded in the synthetic foamed material of the base portion, wherein the conduit connection interface structure and the installation component connection contour are exposed.

Abstract: A wall installation connection box unit including a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, which sleeve portion peripherally surrounds a sanitary component mounting space, which space is accessible via an open front end face of the sleeve portion, a functional surface body including a functional surface, and a connection device which is configured for releasable fastening of the functional surface body to the base portion in different axial levels of the functional surface and includes at least one connection structure on the base portion radially outside the sleeve portion and a connection body cooperating with the connection structure, which connection body is user-operable via an actuation interface to be movable relative to the connection structure and to the functional surface body between a released position and a fastened position.

Abstract: A wall installation connection box unit, including a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, which sleeve portion peripherally surrounds an installation component mounting space, which space is accessible via an open front end face of the sleeve portion, an extension sleeve which is configured for coaxial arrangement on the sleeve portion and axial pushing back relative to the sleeve portion, and a retaining structure which allows axial pushing back of the extension sleeve on the sleeve portion from a mounting position to an end use position on variable axial level and retains the extension sleeve in the end use position on the sleeve portion.

Abstract: A sanitary wall installation connection box unit, including a box housing body having a rear-side base portion and a sleeve portion projecting to the front from the base portion, which sleeve portion peripherally surrounds a sanitary component mounting space, which space is accessible via an open front end face of the sleeve portion, and a connector body disposed on the base portion of the box housing body, which connector body includes a sanitary component connection contour facing the sanitary component mounting space, a fluid line connection interface structure accessible on an outer side of the box housing body, a fluid conduit structure for fluid connection of the fluid line connection interface structure to the sanitary component connection contour and at least one electric line feed-through opening leading from an outer side of the connector body through the connector body to the sanitary component mounting space.

Abstract: A wall installation connection box unit, including a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, and a connector body disposed on the base portion. The sleeve portion peripherally surrounds an installation component mounting space, which space is accessible via an open front end face of the sleeve portion. The connector body includes an installation component connection contour facing the installation component mounting space and a conduit connection interface structure accessible on an outer side of the box housing body. Illustratively, the sleeve portion and the base portion of the box housing body are integrally formed from a synthetic foamed material, and the connector body is embedded in the synthetic foamed material of the base portion, wherein the conduit connection interface structure and the installation component connection contour are exposed.

Abstract: A pull-out hose device includes a hose box with a box housing, a pull-out hose held on the box housing to be pulled out and having at least one hose bend accommodated in the box housing, and a fluid connector for the pull-out hose. According to an illustrative embodiment, the hose box has a box holding frame to which the box housing is removably attachable in a mounting direction and is detachable therefrom in a demounting direction. The fluid connector includes a first connector part disposed on the box housing, to which connector part the pull-out hose is connected with one hose end, and a second connector part disposed on the box holding frame. The first and the second connector parts are connectable to each other in a fluid-tight manner in the mounting direction and are disconnectable from each other in the demounting direction.

Abstract: A pull-out hose device includes a hose box with a box housing, a pull-out hose held on the box housing to be pulled out and having at least one hose bend accommodated in the box housing, and a fluid connector for the pull-out hose. According to an illustrative embodiment, the hose box has a box holding frame to which the box housing is removably attachable in a mounting direction and is detachable therefrom in a demounting direction. The fluid connector includes a first connector part disposed on the box housing, to which connector part the pull-out hose is connected with one hose end, and a second connector part disposed on the box holding frame. The first and the second connector parts are connectable to each other in a fluid-tight manner in the mounting direction and are disconnectable from each other in the demounting direction.