Commercial Electric 1-Gang Metallic Weatherproof Extension Ring with (4) 1/2 in. Holes, Gray WSE450G - The Home Depot
Steel City 4-11/16 in. 2-Gang New Work Square Metal Electrical Box Extension Ring 73151 1/2 3/4 - The Home Depot
Galvanized Steel, 1 1/2 in Nominal Dp, Extension Ring - 1RVU4|203 - Grainger
Commercial Electric 4 in. Round Metallic Weatherproof Extension Ring with (4) 1/2 in. Holes, Gray WRE450G - The Home Depot
3-1/2 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's | 111 | Raco
1/2" Octagon Box Ring Extension - Amazon.com
4" Square Extension Ring, 1-1/2" Deep - Welded, W/Conduit KO's | Southwire
Extension tube - Wikipedia
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
Appleton 40E12 :: 4" Octagon Box Extension Ring, 1-1/2" Deep, 1/2" KOs, Steel :: PLATT ELECTRIC SUPPLY
SOU H4457 - Handy Box Extension Ring - BR Supply Inc
Thomas & Betts 531711234 Steel City Extension Ring | Standard Electric Supply Co.
Slab Box Extension Ring - Kraloy Fittings
Galvanized Steel, 1 1/2 in Nominal Dp, Extension Ring - 2DDA7|653 - Grainger
Circular Extension Ring 20mm - Marshall-Tufflex
4-11/16" Square Extension Ring, 1-1/2" Deep - Drawn, W/Conduit KO's | Southwire
Sigma Engineered Solutions Metal Weatherproof New Work Box Extender Electrical Box in the Electrical Boxes department at Lowes.com
Appleton 4SES :: 4" Square Extension Ring, 1-1/2" Deep, Drawn, Metallic :: PLATT ELECTRIC SUPPLY
Steel City 531511234UB 4" Square Extension Ring, 1-1/2" Deep, 1/2" & 3/4" Knockouts, 21.0"° | Cooper Electric
Classic Hopper Extension Ring
Circular Extension Ring 32mm - Marshall-Tufflex
