4″ Octagon Extension Box w/ KO, 1-1/2″ DEEP

Description

The CM-4RB-MKO-EXT 4" Octagon Extension Box is a 1-1/2" deep, 16-gauge steel extension ring with a cubic capacity of 15.5 cubic inches. It measures 4 inches in height, width, and length, and weighs 0.72 pounds. This product is UL and CSA standard compliant and features knockout cable entry. It belongs to the CM4RB series and is categorized under 4" round boxes.