What describes plumbing fixtures intended for use by individuals or families in residences?

Plumbing fixtures designed for use by individuals or families in residential settings are classified as "private" or "private use." This designation indicates that these fixtures are intended for exclusive or personal use within a home, emphasizing their function in providing comfort and amenities directly to the residents.

In contrast, other classifications like public use generally refer to fixtures available in shared spaces such as restaurants, offices, or public restrooms, where multiple individuals may use them without a specific association to a single household. Common use could imply fixtures that are available for use by a group of people, such as in a multi-family dwelling, but still do not convey the exclusive, individual experience that private fixtures provide. Shared fixtures, similarly, suggest a communal aspect that does not apply when considering fixtures meant specifically for a household.

Therefore, the term "private" accurately captures the essence of fixtures utilized in a family's residence, which are exclusively for the inhabitants' use, maintaining their privacy and convenience.