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Center Device Plaster Ring for 4-11/16" Square Junction Box

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Use this center device plaster ring for 4-11/16" square electrical box for mounting an oversized single switch or outlet in the middle to allow room for extra wiring or cables. These double gang plaster rings for center-installed electrical devices and switch plates. Two gang mud-ring for an electrical square junction box for mounting decorator rocker, GFCI, toggle, duplex outlet, or intercom devices in the middle.


  • 4.875" x 4.875" flat plaster ring is a steel cover with screw holes in the middle
  • use with oversized plates (5.5" x 5.5" and up)
  • 1-15/16" wide opening in center
  • standard box mounting tabs in the center of the ring at 3-9/32"
  • screw slots on all 4 corners for quick installation on 4-11 junction boxes (4-11/16" x 4-11/16" electrical square boxes) - see the smaller plaster ring if you need it for a 4" box
  • device mounts onto mud ring and switch plate mounts onto device
  • if using with decorator or other strap-mount devices you may need to trim your screws or use spacers to adjust how the devices are seated
  • UL listed
  • mud-ring can be used with all standard devices - decorator rocker switches, toggle light switches, dimmers, timers, and duplex outlets. Use plaster yoke when you only need one electrical switch installed in the center of a double gang box, either for aesthetic reasons or when extra mounting room is needed.
  • use with smart tuner keypad or speaker installation in high-end multi-room audio sound systems, whole-house digital entertainment systems, intercom communications networks (such as those by Russound) or anywhere bulky, behind-the-scene wiring requires the use of a two gang electrical box to accommodate all wires in a home or office building.

Double Check the correct mud ring and cover plate based on electrical box type.

Click Electrical Switches, Toggles, Outlets, Light Dimmers for Wall Switch Plates for electrical devices in black, brown, gray, white, ivory, light almond or red.

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