The Southwire 72171-1-VT is a 4-11/16" square box designed for drain applications, featuring a depth of 2-1/8" and a 1" knockout. This box is engineered for optimal performance in electrical installations, providing a reliable housing for wiring connections. Its durable construction ensures compliance with industry standards, making it suitable for various applications. The design allows for easy access and installation, while the knockout feature provides flexibility for different wiring configurations. Ideal for both residential and commercial use, this box is essential for any electrical project.