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Galvanised zinc single-gang mud ring, 1.50 cu. in. capacity, 1/4 in. raised height

Hubbell Incorporated

Hubbell Incorporated RACO 771 Mud Ring 1 Gang Galvanized Zinc

SKU CH-47CH-4RZ3J

Galvanized zinc mud ring adds 1.50 cu. in. capacity to a one-gang 4 in. square box with a 1/4 in. raised height

  • TypeElectrical Boxes & Covers
  • Galvanized zinc resists corrosion for long service life
  • 50 cu. in. capacity fits standard wiring needs
  • 1/4 in. raised height aligns with plaster surfaces
  • Single-gang design suits one switch or receptacle
  • Compatible with 4 in. square boxes for secure mounting

RACO 771 Single-Gang Mud Ring

This galvanized zinc mud ring fits a standard 4-inch square box and provides a single-gang opening for device mounting. It adds 1.50 cubic inches of capacity and a 1/4-inch raised height to accommodate plaster or drywall finishes. The silver-coloured accessory is designed for new electrical installations.

Suited for electricians finishing 4-inch boxes

Installers who need a one-gang plaster ring with a quarter-inch rise will find this part matches the box type and capacity required. Projects demanding multiple gangs, a different raise depth, or a non-metallic ring should select an alternative accessory.

1.50 cu. in. capacity with 1/4 in. rise

The ring comfortably handles a single device and the extra volume needed for plaster coverage up to the specified raise. It runs out when the installation calls for more than one gang or a deeper extension than the listed height.

Highlights

  • Galvanized zinc resists corrosion for long service life
  • 50 cu. in. capacity fits standard wiring needs
  • 1/4 in. raised height aligns with plaster surfaces
  • Single-gang design suits one switch or receptacle
  • Compatible with 4 in. square boxes for secure mounting

Specifications

BrandRACO
TypeElectrical Boxes & Covers

Questions about this item

What size box is required for the RACO 771 mud ring to fit?

The mud ring is designed for use with a 4-inch square electrical box.

Will the 1.50 cu. in. capacity of this ring work with my existing wiring?

The ring adds 1.50 cubic inches of capacity, suitable for typical single-gang device wiring.

How can I confirm the RACO 771 is seated correctly after installation?

The ring should sit flush at its 1/4-inch raised height against the box with the galvanized zinc surface visible.

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