Open: $5.0510 USD/lb
11/14/2025
Close: $5.0875 USD/lb
11/13/2025
COMEX Aluminum
Latest: $2.0790 USD/lb
11/01/2025
Previous: $1.9439 USD/lb
10/01/2025
COMEX
CU
5.0510
AL
2.0790
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Steel Boxes, Covers, & Accessories

4" Square Extension/Adapter Ring, 1-1/2" Deep - Welded, W/Conduit KO's

Southwire #: 53151-SUB Model #: 53151-SUB
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4IN SQ EXTRNG 1-1/2D FOR UTIL

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Features & Benefits

  • Converts Switch box to 4" Square
  • Combination knockouts allow for greater wiring flexibility
  • Combination Phillips/Slotted screw heads.

Specifications

Model # 53151-SUB 53151-SUB
UPC # 785592108517 785592108517
Product Height 1.5 3.81 inch cm
Product Width 4.0 10.16 inch cm
Product Weight 0.56 0.25 lbs kg
Material Galvanized Steel Galvanized Steel
Cubic Capacity 21.0 (344.1) 21.0 (344.1)
Standard Package 25 25
Bottom Knockouts (2) 3/4", (3) 1/2" (2) 3/4", (3) 1/2"
Side Knockouts (6) 1/2", (6) 1/2" - 3/4" (6) 1/2", (6) 1/2" - 3/4"
Color Silver Silver
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