1-1/2" DEEP, 4" SQUARE (4S) EXTENSION RING WELDED WITH 1/2" KO

1-1/2" Deep, 4" Square (4S) Extension Ring Welded with 1/2" KO – Electrical Box Extension This 1-1/2" deep, 4" square extension ring is designed for use in electrical wiring and conduit installations, providing additional depth for wiring devices and boxes. Manufactured by Orbit Industries, it is suitable for electrical distributors and switchgear suppliers requiring durable and precise extension solutions. The welded construction ensures structural integrity, while the 1/2" knockout (KO) allows for easy conduit entry. This product supports lighting solutions and wire and cable management in commercial and industrial electrical applications. Specifications Product Name: 1-1/2" Deep, 4" Square (4S) Extension Ring Welded with 1/2" KO Manufacturer: Orbit Industries Manufacturer Part Number: 4SB-50-EXT Product Weight: 25.8 lbs Dimensions: 4" x 4" square (standard 4S box size), 1-1/2" depth UPC: 835243011144 Features Welded construction for enhanced durability and stability Includes 1/2" knockout for conduit connection Compatible with standard 4" square electrical boxes Designed to extend box depth for additional wiring space Downloads & Links Spec Sheet Spec Sheet