4" Square Adjustable Mud Ring, 1/2 - 1-1/2" Deep, 2-Device, Steel

Thomas & Betts 4 inch square device rings are widely recognized for quality, selection and ease of installation. They may be used in conjunction with switches, receptacles, and GFCI. Manufactured of durable materials with consistent construction means easy installation, making all the difference in the speed and final quality of any wiring job.