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Catalog ID: 53151K

Catalog ID:  53151K
Extension ring for 4 In. Square Box, 1-1/2 in. Deep, 21 Cu. In., with Concentric, 1/2 & 3/4 in., and 1/2 in. KO (50-Pack)

Self-tapping screws virtually eliminate stripping

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Product Details


Application Boxes are installed in ceiling or wall junctions. Square boxes are used where multiple conductor runs are split into two or more directions to bring power to a number of electrical devices.
Bracket Type No Bracket
Color Gray
Drawn or Welded Drawn
Gangable No
Knockouts 4 x 1/2 in, 6 x ½-3/4 in Comb ination
Knockouts - End 4 x 1/2in, 2 x ½-3/4in Combination
Knockouts - Side 4 x ½-3/4in Combination
Material Steel
Number of Gang(s) 2-Gang
Plaster Ears No
Sub Brand tradeSELECT
Type Extension Ring
UPC 626463003350
Wiring System Conduit


Actual Depth 1.5 in
Raised Ground No
Weight 0.38 lb

Certifications and Compliance

Certified Listed CSA
Industry Standard(s) CSA Certified


Carton Quantity 50
Pallet Quantity 2250