Electrical 4" x 4" Box Adjustable Device Ring 5/8" - 1-1/4" Adjustable Round Mud Ring/Plaster Ring 4" Square to Round Metal Box Device Ring Adjustable to Thickness of Wall Heavy Duty (5)

Electrical 4" x 4" Metal Box Device Ring Adjustable. Can be Adjusted from 5/8" - 1-1/4" by adjusting the screw on front of the Device Ring. Used for generic electrical 1900 box . Round for use with lighting fixtures or ceiling boxes. Also Known as adjustable Mud Ring or adjustable Plaster Ring. Extension assures flush fit on any size wallboard/sheetrock. Provides flexibility and saves time on job site. 4" Square to Round ring allows you to convert 4" square metal box to round to use with lighting fixtures and ceiling fixtures.

• UL Listed
• 4" Square to Round
• Used for lighting fixtures
• Adjustable 5/8"-1-1/4"