Abstract: An oral care implement including a handle and an oral care refill head. The handle has a gripping portion, an engagement component coupled to a distal end of the gripping portion, and a stem. The engagement component includes a plate portion and a first engagement feature. The stem extends through an opening in the engagement component and protrudes from the plate portion. The oral care refill head includes an oral care treatment portion and a sleeve portion. The sleeve portion has an inner surface that defines a sleeve cavity having a cavity axis and a second engagement feature. When the oral care refill head is detachably coupled to the handle, the first and second engagement features mate with one another to at least one of: (1) position the oral care refill head and the handle in an operational alignment; and (2) lock the oral care refill head to the handle.

Abstract: An oral care implement including a handle and an oral care refill head. The handle has a gripping portion, an engagement component coupled to a distal end of the gripping portion, and a stem. The engagement component includes a plate portion and a first engagement feature. The stem extends through an opening in the engagement component and protrudes from the plate portion. The oral care refill head includes an oral care treatment portion and a sleeve portion. The sleeve portion has an inner surface that defines a sleeve cavity having a cavity axis and a second engagement feature. When the oral care refill head is detachably coupled to the handle, the first and second engagement features mate with one another to at least one of: (1) position the oral care refill head and the handle in an operational alignment; and (2) lock the oral care refill head to the handle.

Abstract: A method of retrofitting an existing water supply system including identifying a water usage device(s) in the existing water supply system suitable for retrofitting; retrofitting each identified water usage device with a new water usage device adapted to communicate water usage parameters of the existing water supply system when an elapsed time of a water usage event exceeds a preset limit, and cease communicating water usage parameters after completion and/or interruption of the water usage event; and thereafter operating the retrofitted water supply system.

Abstract: A water usage device for sensing, measuring, collecting, and transmitting water usage data to a remote processing device via a cloud-based communication network and a system for and a method of monitoring and managing water usage in commercial and residential settings that include scheduling preventive maintenance based on current and accumulated water usage data and historical data correlating water usage to repairs.