Steel City® Mud Ring, Adjustable, 4 in Length, 4 in W, 2-1/8 in D, 1/2 to 1-1/2 in Raised, Surface Mount, 3 to 11 cu-in, Steel, Pre-Galvanized, Silver

• Patent-pending design, rugged steel construction similar to standard mud ring but with greater flexibility
• Quick release locking mechanism enables fast and easy adjustment of inner ring
• Locking mechanism located behind outer ring remains safe from router damage or excess mudding
• Adjustment screws located outside inner ring leaving maximum capacity for devices, won't take up crucial box area
• Measured rule on inner ring for simple pre-fab setting in pre-drywall installations
• Mounts to any standard 4 in square 2-1/8 in deep outlet box and accepts industry standard devices, including GFCIs
• For hospital construction where drywall depth often varies, ceramic tile walls
• For any other application in which a stud-mounted box and mud ring may require depth adjustment prior to final trim work
• Mud Rings feature an inner ring that adjusts from 1/2 in to 1-1/2 in in depth to accommodate various drywall thicknesses
• Double gang

• Catalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_52258ad8ad585f311c6d998a714b0274aa7e2df436b171a9d96e9551497822b6.pdf
• Full Engineering Drawing https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_7afe3985408afe897ba195264cd987f46300ff8e7fbd51e37218b798bba75bf2.pdf