Leviton Conduit Hubs are designed to produce a raintight seal on NEMA 3R rated outdoor load center. Features a 2" openin. Leviton is proud to bring the Load Center into the 21st century with a focus on improved safety and ease of installation. Thanks to its revolutionary design, all hot and neutral wires terminate at custom lugs in the panel, rather than at the circuit breaker, which allows the entire panel to be wired at rough-i. Branch circuit breakers are simply plugged-in at final installation, increasing jobsite efficienc. Leviton offers a full line of accessories to meet every need when installing the Leviton Load Cente. Locking devices, lugs, ground and neutral bar kits, conduit hubs, sealing rings and more are all available to ensure an accurate and quick installation.