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
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
3-1/2 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's | 111 | Raco
Classic Hopper Extension Ring
Galvanized Steel, 1 1/2 in Nominal Dp, Extension Ring - 1RVU4|203 - Grainger
Appleton 40E12 :: 4" Octagon Box Extension Ring, 1-1/2" Deep, 1/2" KOs, Steel :: PLATT ELECTRIC SUPPLY
Nauticam N120 Extension Ring 70 with lock
Commercial Electric 1-Gang Metallic Weatherproof Extension Ring with (4) 1/2 in. Holes, Gray WSE450G - The Home Depot
Extension Rings - Weatherproof Products
Sigma Engineered Solutions Metal Weatherproof New Work Box Extender Electrical Box in the Electrical Boxes department at Lowes.com
RACO 2-Gang Steel New Work/Old Work Box Extender Electrical Box in the Electrical Boxes department at Lowes.com
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
Appleton 4SES :: 4" Square Extension Ring, 1-1/2" Deep, Drawn, Metallic :: PLATT ELECTRIC SUPPLY
4-11/16" Square Extension Ring, 1-1/2" Deep - Drawn, W/Conduit KO's | Southwire
Extension Ring – Squarehood
3-1/2" Round Pan Box Extension Ring, 1/2" Deep - Drawn, Fixture Earss2-3/4" O.C. | Southwire
Hubbell-Raco 653 Handy Box Extension Ring | Standard Electric Supply Co.
TP564 | Eaton Crouse-Hinds series square extension ring | Specifications | Eaton
Circular Extension Ring 32mm - Marshall-Tufflex
SOU H4457 - Handy Box Extension Ring - BR Supply Inc
4" Square Extension Ring, 1-1/2" Deep - Welded, W/Conduit KO's | Southwire
Raco 8201 Square Extension Ring, Drawn, 4", 1-1/2" Deep with Twelve 1/2" KO"s, Gray: Electrical Boxes: Amazon.com: Tools & Home Improvement
RACO 187 Drawn Extension Ring, 22.5 Cu-in, 4 in L X W X 1-1/2 in D, Product Specific - Amazon.com
Circular Extension Ring 20mm - Marshall-Tufflex
Steel City 531511234UB 4" Square Extension Ring, 1-1/2" Deep, 1/2" & 3/4" Knockouts, 21.0"° | Cooper Electric
