Hubbell-Raco 207 :: 4" Square Extension Ring, 2-1/8" Deep, Welded, Metallic :: PLATT ELECTRIC SUPPLY
Slab Box Extension Ring - Kraloy Fittings
Steel City 4 in. 1-1/2 in. New Work Deep Pre-Galvanized Metal Octagon Electrical Box Extension Ring 551511234-25R - The Home Depot
Nikon PK-13 Auto Extension Ring 27.5mm (55 Micro AI (1:1) at KEH Camera
Hubbell-Raco 187 :: 4" Square Extension Ring, 1-1/2" Deep, Drawn, Metallic :: PLATT ELECTRIC SUPPLY
4" Square Extension Ring, 1-1/2" Deep - Welded, W/Conduit KO's | Garvin Industries
RACO 2-Gang Silver Steel New Work/Old Work Standard Box Extender Wall Electrical Box in the Electrical Boxes department at Lowes.com
Extension Ring – Squarehood
1/2" Octagon Box Ring Extension - - Amazon.com
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
Sigma Engineered Solutions Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com
Garvin Masonry Box Extension Ring Two Gang 2-1/2" Deep TBX-225 | Zoro
Nauticam N120 Extension Ring 70 with lock
Extension ring 22" (57cm) - Ribolator
4" Square Extension/Adapter Ring, 1-1/2" Deep - Welded, W/Conduit KO's | Garvin Industries
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
Galvanized Steel, 1 1/2 in Nominal Dp, Extension Ring - 1RVU4|203 - Grainger
Square Box: 1-1/2" Deep, 4" Square Extension Ring with Side Knockouts 53151-S - YouTube
Nauticam N120 70mm Extension Ring II
Crawford Electric Supply
TP428 Eaton 4SQ, 1-1/2D Ext RNG, 1/2&3/4ko
Crouse-Hinds by Eaton,Four Square Box, 1 1/2 Inch Depth, 1 Gang to 2 Gang, Extension Ring, Steel,TP422
