![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 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](https://m.media-amazon.com/images/I/61EWxuYA19L.jpg)
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
![Steel City 1-Gang 3 1/2 in. New Work Pre-Galvanized Metal Octagon Electrical Box Extension Ring (Box/Conduit/Fitting Accessory) 2515112-25R - The Home Depot Steel City 1-Gang 3 1/2 in. New Work Pre-Galvanized Metal Octagon Electrical Box Extension Ring (Box/Conduit/Fitting Accessory) 2515112-25R - The Home Depot](https://images.thdstatic.com/productImages/1d5ea6b8-8445-4220-9704-30c54f37047b/svn/steel-city-boxes-brackets-2515112-25r-64_1000.jpg)
Steel City 1-Gang 3 1/2 in. New Work Pre-Galvanized Metal Octagon Electrical Box Extension Ring (Box/Conduit/Fitting Accessory) 2515112-25R - The Home Depot
![Sigma Engineered Solutions 1-Gang Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com Sigma Engineered Solutions 1-Gang Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com](https://mobileimages.lowes.com/productimages/9bd07d60-c92f-4586-b75a-5f4cfdad7b99/11126167.jpg?size=xl)
Sigma Engineered Solutions 1-Gang Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com
![TayMac Corp SE450S 4 1/2 Inch Hole Rectangle Box Extension Ring | Quality Electrical Distribution (QED) TayMac Corp SE450S 4 1/2 Inch Hole Rectangle Box Extension Ring | Quality Electrical Distribution (QED)](https://ideadigitalasset.com/DAMRoot/Original/10105/11275_12367654-PIC-EN-1.jpg)
TayMac Corp SE450S 4 1/2 Inch Hole Rectangle Box Extension Ring | Quality Electrical Distribution (QED)
![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 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](https://m.media-amazon.com/images/I/41hSPHuCgBL._AC_UF894,1000_QL80_.jpg)
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
![Square Box Extension Ring, 21 Cubic Inches, 4 Inch Square x 1-1/2 | Crescent Electric Supply Company Square Box Extension Ring, 21 Cubic Inches, 4 Inch Square x 1-1/2 | Crescent Electric Supply Company](https://www.crescentelectric.com/493763/globalassets/catalogs/crescentelectric.com/a/a43/a430c/a430c2fd-d0d3-4978-98d5-0333d3e23e/a430c2fd-d0d3-4978-98d5-0333d3e23e78/tb-531511234ub-1.jpg?width=1200&height=1200&mode=Pad&bgcolor=fff)
Square Box Extension Ring, 21 Cubic Inches, 4 Inch Square x 1-1/2 | Crescent Electric Supply Company
![Pass & Seymour EXT-1 1-Gang 1 cu.in Plastic Stackable Wall Box Extension Ring | NorthEast Electrical Pass & Seymour EXT-1 1-Gang 1 cu.in Plastic Stackable Wall Box Extension Ring | NorthEast Electrical](https://media.distributordatasolutions.com/legrand/2019q4/61f366b98c3d8f28c267e649fef8f399cc7b5206-large.png)
Pass & Seymour EXT-1 1-Gang 1 cu.in Plastic Stackable Wall Box Extension Ring | NorthEast Electrical
![Steel City® SBEX Drawn Style Switch Box Extension Ring, 1 Gang, 3 in L x 3 in W x 7/8 in D, Steel | SMC Steel City® SBEX Drawn Style Switch Box Extension Ring, 1 Gang, 3 in L x 3 in W x 7/8 in D, Steel | SMC](https://assetcloud.roccommerce.net/w458-h458-cpad/_smcelectric/9/2/10/idw_image_8990dea9066638cde8450ca2e2fb46579928cca694a1904b7e9b56f9b2d8eb77.jpg)
Steel City® SBEX Drawn Style Switch Box Extension Ring, 1 Gang, 3 in L x 3 in W x 7/8 in D, Steel | SMC
![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 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](https://m.media-amazon.com/images/I/61poQkXcxOL._AC_UF894,1000_QL80_.jpg)
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
![1/2" ReceptXtenders (one), Single Gang Receptacle Outlet Box Extender. UL Listed, Mud Ring by WGDepot - - Amazon.com 1/2" ReceptXtenders (one), Single Gang Receptacle Outlet Box Extender. UL Listed, Mud Ring by WGDepot - - Amazon.com](https://m.media-amazon.com/images/I/61H7QW1tEAL.jpg)
1/2" ReceptXtenders (one), Single Gang Receptacle Outlet Box Extender. UL Listed, Mud Ring by WGDepot - - Amazon.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 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](https://m.media-amazon.com/images/I/41Kd4tOMWOL._AC_.jpg)
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 4" x 2-1/8" x 1-7/8" Steel Handy/Utility Box Extension Ring, 13 cu.in. | Cooper Electric Steel-City 59361-1/2 4" x 2-1/8" x 1-7/8" Steel Handy/Utility Box Extension Ring, 13 cu.in. | Cooper Electric](https://www.ideadigitalcontent.com/files/11316/ID-PIC-v1-5936112_sc1.jpg)