Cooper Crouse-hinds TP499 Steel Mud Ring

Product Description

The COOPER CROUSE-HINDS TP499 is a steel mud ring designed for use with electrical outlet boxes and device boxes in commercial and residential wiring installations. Mud rings, also called plaster rings or extension rings, raise the face of an electrical box flush with finished wall or ceiling surfaces - essential when drywall, tile, or plaster adds depth beyond the box face. This fitting is a standard accessory installed by licensed electricians during rough-in or finish stages of construction or renovation work. Its steel construction provides durable support for switches, receptacles, and other wiring devices mounted to the box.

The TP499 mud ring is suited for use in wall and ceiling assemblies where the finished surface sits proud of the electrical box. Typical applications include new construction framing, remodel work, and commercial tenant build-outs where consistent device-mounting depth is required. The ring serves as an extension point between the junction box and the device or cover plate, ensuring a secure, flush, and code-compliant installation across drywall and similar finish materials.

Key Features

• Steel construction for rigid, lasting support in finished wall and ceiling assemblies
• Functions as a plaster or extension ring to align electrical devices flush with finished surfaces
• Compatible with standard electrical outlet and device box configurations
• Lightweight at 0.21 pounds for easy single-handed positioning during install

Compatibility

Designed as an OEM-style replacement and standard accessory for use with residential and commercial electrical device boxes where a mud ring or plaster ring extension is required to achieve flush device mounting.

Installation Notes

Installation is performed by a licensed electrician in accordance with applicable NEC requirements. De-energize the circuit at the breaker panel before working on or near any electrical box. The mud ring is typically fastened to the box using the existing mounting holes prior to pulling and terminating conductors. Verify the ring depth is appropriate for the finished wall thickness before securing the device or cover plate.