When wall depth is uncertain and time is tight, electrical contractors and installers need smart solutions that can adapt on the fly. The new line of RACO® Square to Octagon Mud Rings eliminates guesswork and reduces labor with fast, flexible installation.

These mud rings make it easy to convert any 4” square box into a 3-1/2" octagon opening — ideal for mounting light fixtures, sensors, LED drivers, and other 4” octagon compatible devices.

The Square to Octagon Mud Rings feature a larger opening for increased volume and working space. Angled mounting slots are built to adjust up to 12 degrees to compensate for box misalignment.

Available in four sizes—5/8”, 3/4", 1”, and 1-1/4", plus an adjustable mud ring with a depth range from 1/2" to 1-3/8”. The adjustable option is especially valuable when wall depth is unknown, helping save time and labor on the jobsite.

Whether you’re retrofitting an existing installation or planning a new one, RACO Square to Octagon Mud Rings deliver the flexibility and ease-of-use installers need.