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Raco 187 4" Steel Square Extension, 1-1/2" Deep, 1/2" & 3/4" Side Knockouts, Attach to Switch Box | NorthEast Electrical
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2 Pcs, Masonry Box Extension Ring, One Gang, 2-1/2 In. Deep, 1/2 & 3/4 In. Knockouts, Zinc Plated Steel for Mounting Switches, Plugs, Outlets & Electronic & Electrical Devices - Walmart.com
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RACO Silver Steel New Work/Old Work Standard Box Extender Wall Electrical Box in the Electrical Boxes department at Lowes.com
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Steel City 59361-1/2 Handy/Utility Outlet Box Extension Ring, Drawn Construction, 4-Inch Length by 2-1/8-Inch Width by 1-7/8-Inch Depth, Galvanized - Outlet Plates - Amazon.com
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Pass & Seymour EXT-1 1-Gang 1 cu.in Plastic Stackable Wall Box Extension Ring | NorthEast Electrical
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2 Pcs, 4" Square Extension Ring, Converts One Gang to 4 Square, 1-1/2 In. Deep, (6) 1/2 In. & (6) 1/2 & 3/4 In Knockouts, Zinc Plated Steel - Walmart.com
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RACO® 5406-0 Weatherproof Extension Ring, 1 Gang, 4-1/2 in L x 2-3/4 in W x 1 in D, Die Cast Aluminum | SMC
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RACO 653 Utility Box, 1 Gang, 11.5 Cu-in X 4 in L X 2 in W X 1-1/2 in D, 4" x 2", Product Specific - Electrical Boxes - Amazon.com
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Sigma Engineered Solutions 1-Gang Metal Weatherproof New Work Box Extender Electrical Box in the Electrical Boxes department at Lowes.com
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Sigma Engineered Solutions 1-Gang Metal Weatherproof New Work Box Extender Electrical Box in the Electrical Boxes department at Lowes.com
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