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4 in. 21 cu. in. Square Box Extension Ring ( 4-Pieces ), US $150 – Picture 0
4 in. 21 cu. in. Square Box Extension Ring ( 4-Pieces ), US $150 – Picture 0

4 In. 21 Cu. In. Square Box Extension Ring ( 4-pieces )

US $150

  • Palatine, Illinois, United States
  • Jun 7th
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4 in. Square Extension Ring is constructed of drawn pre-galvanized stainless steel. The extension ring is 1-1/2 in. deep with a 21 cu. in. capacity. It features 12 knockouts which are sized 1/2 in.  Used to house and protect electrical wiring, switches and receptacles Drawn pre-galvanized stainless steel Features (12) 1/2 in.  knockouts 21 cu. in. capacity Mounting screws included UL listed

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