Steel Square Electrical Box Extension Ring, 4 in.

Enhance your electrical installations with the Steel Square Electrical Box Extension Ring. Designed for 4 in. square junction boxes, this extension ring provides additional wiring capacity without the hassle of removing existing conduit boxes and wiring. Crafted from durable welded steel and finished in corrosion-resistant silver, it’s ideal for old-work applications and new installations alike. Fully UL Listed and RoHS compliant, this extension ring ensures safety and reliability on any residential or commercial project.

Key Features

• Increases wiring capacity by adding 1.5 in. of depth to 4 × 4 junction boxes
• Permits additional conduit runs and electrical wires without box removal
• Durable, welded steel construction resists corrosion and wear
• UL Listed and RoHS compliant for peace of mind
• Compatible with standard 4 in. square electrical boxes
• Provides 21 cu. in. of internal volume for multiple conductor connections

⚠️ WARNING: This product can expose you to Lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.