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RACO 4 in. Square 1-Device Mud Ring, Raised 5/8 in. (25-Pack) 8768 - The Home Depot
OHLECTRIC 4-Inch Square Single Gang Device Rings 4S Plaster Ring – Made from Galvanized steel, ¼" Raised Mud Ring Electrical Outlet OL-78955-2 (Pack of 2) - Amazon.com
Crouse-Hinds TP488 - 4 Inch Plaster Ring 1 Inch Recessed
RACO 756 4IN SQ 5/8D PLASTER RING | Gordon Electric Supply, Inc.
Steel City 2-Gang 4 in. 4.3 cu. in. Pre-Galvanized Metal Square Mud Ring - 5/8 in. Raised 52C3-25R - The Home Depot
Electrical 101: What Are Mud Rings & How To Install Them Correctly - YouTube
Galvanized Steel 4x4 Square Plaster Ring 2 Gang Device Cover - Buy Galvanized Steel 4x4 Square Plaster Ring 2 Gang Device Cover Product on Alibaba.com
Steel City 4 in. Square Box Mud-Ring 2 Device 5/8 RSD 52C1858-25R - The Home Depot
RACO, Galvanized Zinc, Silver, Plaster Ring - 3KF45|771 - Grainger