4″ Octagon Extension Box, 1-1/2″ DEEP

Description

The CM-4RB-50-EXT 4" Octagon Extension Box is a 1-1/2" deep extension ring designed for electrical installations. Made from durable 16-gauge steel, it offers a cubic capacity of 15.5 cubic inches. This UL and CSA standard-compliant box measures 4 inches in height, width, and length, and weighs 0.72 pounds. It features knockout cable entries and belongs to the CM4RB series of 4" round boxes. Ideal for extending existing electrical boxes, it ensures reliable performance in various applications.