3" X 2" Switch Box Extension Ring - Walmart.com
Raco® 653 Handy Box Extension Ring With Conduit Knockout, 11.5 cu-in, 1 Outlet, 8 Knockouts, Steel | Steiner Electric Company
Garvin Masonry Box Extension Ring Two Gang 2-1/2" Deep TBX-225 | Zoro
Garvin SBEX Switch Box Adjustable Extension Ring (Sbex)
4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep with Twelve 1/2 in. KO's: Electrical Boxes: Amazon.com: Tools & Home Improvement
RACO Silver Steel New Work/Old Work Standard Box Extender Ceiling Electrical Box in the Electrical Boxes department at Lowes.com
Hammond Manufacturing - CS88EXT4 - Junction Box Extender Ring,4 in Box Depth Extension,8X8,Gray,For CS Enclosures - RS
SQUARE BOX EXTENSION RING | Edges Electrical Group
TayMac Corp SE450S 4 1/2 Inch Hole Rectangle Box Extension Ring | Quality Electrical Distribution (QED)
Raco 2-1/8 In. x 4 In. x 1-7/8 In. Outlet Box Extension - Bliffert Lumber and Hardware
Appleton 30E12 :: 3-1/4" Octagon Box Extension Ring, 1-1/2" Deep, 1/2" Knockouts, Steel :: PLATT ELECTRIC SUPPLY
RACO 4 in. L x 2 in. W x 1-7/8 in. D Drawn Extension Ring with Eight 1/2 in. Knockouts, 1-Pack 665 - The Home Depot
RACO 8203 Electrical Box Extension Ring, 1 Gang, 22.5 Cu-in, 4 in L X W X 1-1/2 in D, Color - Electrical Boxes - Amazon.com
IHE Red Dot 1G Blank Extension Ring
Crouse-Hinds by Eaton,Four Square Box, 1 1/2 Inch Depth, 1 Gang to 2 Gang, Extension Ring, Steel,TP422
Octagon Box Extension Ring, 15.8 Cubic Inches, 4 Inch Diameter x | Crescent Electric Supply Company
Steel City 4 in. 1-1/2 in. New Work Deep Pre-Galvanized Metal Octagon Electrical Box Extension Ring 551511234-25R - The Home Depot
ReceptXtenders 1-Gang 3/4 in. Electrical Receptacle Box Extension Ring 5-Pack HD50006 - The Home Depot
Pass & Seymour EXT-1 1-Gang 1 cu.in Plastic Stackable Wall Box Extension Ring | NorthEast Electrical
Steel City 53151 1/2 3/4 Pre-Galvanized Steel Square Box Extension Ring with 1/2-Inch and 3/4-Inch Knockouts - Ring Terminals - Amazon.com
Hubbell-Raco - Extension Ring: Steel - 90315375 - MSC Industrial Supply
RACO 5407-0 2G BOX EXT RING | Gordon Electric Supply, Inc.
Commercial Electric 1/2 in. Gray 4-Holes 4 in. Round Weatherproof Extension Ring WRE450G - The Home Depot
4" SQUARE J-BOX EXTENSION RING | Surplus City Liquidators
