SOU H4457 - Handy Box Extension Ring - BR Supply Inc
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
Hammond Manufacturing - CS88EXT4 - Junction Box Extender Ring,4 in Box Depth Extension,8X8,Gray,For CS Enclosures - RS
RACO Silver Steel New Work/Old Work Standard Box Extender Ceiling Electrical Box in the Electrical Boxes department at Lowes.com
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
3" X 2" Switch Box Extension Ring - Walmart.com
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
Hubbell-Raco - Extension Ring: Steel - 31523764 - MSC Industrial Supply
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
RACO 5407-0 2G BOX EXT RING | Gordon Electric Supply, Inc.
Appleton 30E12 :: 3-1/4" Octagon Box Extension Ring, 1-1/2" Deep, 1/2" Knockouts, Steel :: PLATT ELECTRIC SUPPLY
ReceptXtenders 1-Gang 1/4 in. Electrical Receptacle Box Extension Ring (5/Pack) HD50002 - The Home Depot
One Gang Utility Box Extension Ring, 13 Cubic Inches, 4 Inches Lo | Crescent Electric Supply Company
DE000S Taymac 2-Gang Extension Ring - No Holes
ReceptXtenders 2-Gang 3/4 in. Electrical Receptacle Box Extension Ring (5-Pack) HD50026 - The Home Depot
4-11/16 in. Square Extension Ring, Drawn, 2-1/8 in. Deep with Eight 1/2 and Four 3/4 in. KO's: Amazon.com: Tools & Home Improvement
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
Garvin Masonry Box Extension Ring Two Gang 2-1/2" Deep TBX-225 | Zoro
Raco 2-1/8 In. x 4 In. x 1-7/8 In. Outlet Box Extension - Bliffert Lumber and Hardware
