Extension Rings

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Extension Rings Electrical Box Extension Ring The Steel City Extension Rings provide a square box extension solution designed for electrical distributors, lighting solutions provid ers, wire and cable installers, and switchgear suppliers. This product is intended for built-in installation boxes requiring additional depth for wiring or fixture mounting. It is suitable for use in electrical box extensions where increased cubic capacity and knockout flexibility are needed. Specifications Product Weight: 22.15 lbs Color: Silver Material: Steel Knockouts: 12 Box Quantity: 50 Cubic Capacity: 21 cu in Number of Outlet: 1 Manufacturer: Steel City Manufacturer Part #: 53151 1/2 3/4 Size: 4 Inches Length x 4 Inches Width x 1-1/2 Inches Depth Standard: UL E2969 Features Square box extension ring with 21 cubic inches capacity Pre-galvanized steel construction for durability and corrosion resistance Equipped with 1/2 inch and 3/4 inch knockouts for versatile conduit connection Silver finish for compatibility with standard electrical installations Designed for easy installation in built-in installation boxes UL Listed for safety and compliance Downloads & Links Spec Sheet Technical Drawing / Spec Sheet US Show more