Everbilt SH-7100-A-01-05-7 is a bath waste designed to simplify the installation process for plumbers. The device includes various components such as a shoe strainer, shoe elbow, and overflow elbow, which work together to create a functional drainage system for bathtubs. The shoe strainer is designed to fit securely into the tub drain hole, while the shoe elbow connects the shoe strainer to the waste tee. The overflow elbow is responsible for directing excess water from the tub into the drain.