Thomas & Betts B117RSWR PVC 1-Gang Shallow Old Work Electrical Outlet Box 3.64-Inch x 4.07-Inch x 2-Inch 17-Cubic-Inch Carlon® | Monarch Electric
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Newhouse Hardware 1-Gang PVC Old Work Electrical Outlet Box (1-Pack) | 14 cu. in. Plastic Junction Box for Switches, GFCI, or Duplex Receptacle Outlet | Electrical Box for Home Improvement, Outlet Boxes - Amazon Canada