Open: $5.0895 USD/lb
11/13/2025
Close: $5.0895 USD/lb
11/12/2025
COMEX Aluminum
Latest: $2.0790 USD/lb
11/01/2025
Previous: $1.9439 USD/lb
10/01/2025
COMEX
CU
5.0895
AL
2.0790
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Steel Boxes, Covers, & Accessories

4" Square Concrete Slab Box, 3-1/2" Deep - Welded, W/Conduit KO's

Southwire #: 52181-3/4-SPKR Model #: 52181-3/4-SPKR
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4 SQ 3-3/4 IN EXTRA CONCRETE BX

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Features & Benefits

  • External tabs allow installer to nail/screw boxes to forms for stability during concrete pour
  • Labor saving design eliminates need to install extension rings to accommodate deeper devices
  • Raised Ground
  • Combination Phillips/Slotted screw heads.
  • UL, RoHS Compliant

Specifications

Model # 52181-3/4-SPKR 52181-3/4-SPKR
UPC # 785592981684 785592981684
Product Height 3.5 8.89 inch cm
Product Width 4.0 10.16 inch cm
Product Weight 1.06 0.48 lbs kg
Material Galvanized Steel Galvanized Steel
Cubic Capacity 50.0 (819.4) 50.0 (819.4)
Standard Package 10 10
Side Knockouts (8) 3/4" (8) 3/4"
Color Silver Silver

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