4" Square Boxes and Extensions

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

SKU: 52181-3/4-SPKRR Model: 52181-3/4-SPKRR
Red junction boxes are installed in walls or ceilings for lighting fixtures, switches, receptacles or other outlet devices for fire alarm and life safety circuit runs. Square boxes are used to bring power to a number of electrical devices where multiple conductor runs are split in two or more directions.

Features & Benefits

  • Extra depth for speakers, strobes, horns and other deep devices
  • Extra long external mounting tabs allow quick attachment to concrete forms
  • Sealed knockouts, joints, and corners prevent concrete slurry from entering the box


Stock # 52181-3/4-SPKRR 52181-3/4-SPKRR
Model # 52181-3/4-SPKRR 52181-3/4-SPKRR
UPC # 785592115836 785592115836
Product Height 3.5 8.89 inch cm
Product Width 4.0 10.16 inch cm
Product Length/Depth 5.5 13.97 inch cm
Product Weight 1.3 0.59 lbs kg
Weight UOM LB LB
Knockouts (8) 3/4 in. Side Knockouts (8) 3/4 in. Side Knockouts
Special Features Raised Ground and concrete tight ko's on bottom Raised Ground and concrete tight ko's on bottom


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