Steel City 55151-1/2&3/4 4 x 1-1/2 Inch Steel Octagon Box Extension Ring with 1/2 and 3/4 Inch Knockouts

Product Description

The Steel City 55151-1/2&3/4 is a steel octagon box extension ring with a size of four inches by one and one-half inches. It includes one-half inch and three-quarter inch knockouts for easy installation in electrical systems.

• Capacity: 15.8 cubic inches
• Material: Drawn pre-galvanized steel
• UL listed for safety

Product Highlights

This extension ring is designed for use with electrical boxes, providing a secure and reliable addition to any electrical installation. The knockouts support various conduit sizes, making it versatile for different applications.

Product Information

Standard Information

• Brand: Steel City
• MPN: 55151-1/2&3/4

Technical Specifications

• Shape: Octagon
• Diameter: four inches
• Depth: one and one-half inches
• Knockout Size: (2) one-half inch conduit side, (2) one-half inch conduit end
• Number of Knockouts: four
• Cubic Capacity: 15.8 cu-in
• Construction Type: Drawn