Eliteline 53171-K 4" Square Box Extension Ring – 2-1/8" Deep Steel Extender

Eliteline 53171-K 4" Square Box Extension Ring – 2-1/8" Deep Steel Extender

The Eliteline 53171-K Square Box Extension Ring is designed to extend the depth and capacity of standard 4" square electrical boxes. This extension ring adds additional wiring space for electrical installations.

With a depth of 2-1/8" and approximately 30 cubic inches of capacity, it is ideal for applications where the existing box is too shallow to safely accommodate wiring.

Key Features

  • Model: 53171-K
  • Dimensions: 4" x 4" x 2-1/8"
  • Type: Square box extension ring
  • Capacity: Approx. 30 cu. in.
  • Extends existing 4" square box
  • Concentric knockouts (1/2" & 3/4")
  • Durable galvanized steel construction

Applications

  • Extending shallow square boxes
  • Adding wiring capacity for conduit systems
  • Commercial and residential electrical upgrades
  • Code compliance (wire fill requirements)

Why Use an Extension Ring?

  • Increase box volume without replacing the box
  • Prevent overcrowding of wires
  • Cost-effective solution for upgrades

Note: This product must be installed onto an existing 4" square box. Not intended for standalone use.