Southwire 4 in. x 2 in. x 1-7/8 in. Handy Box Extension Ring

The Southwire 4 in. x 2 in. x 1-7/8 in. Handy Box Extension Ring is designed to extend electrical junction and utility boxes. Featuring keyhole mounting for quick and easy installation, it provides added wiring capacity and depth for existing single-gang electrical installations. Constructed from durable galvanized steel with a corrosion-resistant finish, this handy utility box extension ring is UL listed and equipped with multiple knockouts to accommodate various conduit entries.