4" Octagon Concrete Rings & Covers
4" Octagon Concrete Rings & Covers
Material：Galvanized Steel
Application：These octagon concrete boxes are used in poured concrete construction. They are installed on wooden or steel concrete forms. Once the forms are removed, the boxes and conduit are buried in concrete and the end is open to the room wall or ceiling, ready for wire pulling. These concrete-box covers are fitted with octagon concrete boxes to enclosed electrical wiring and provide a means of conduit attachment.
Advantages：Extra long external mounting tabs allow an easy installation by nailing or screwing the boxes to wooden or steel concrete forms. Knockouts are sealed against box surface to prevent concrete slurry and water from entering the box. The top covers are removable allowing any before-pour work.Octagon concrete box covers have knockouts that are sealed with the surface of the cover to prevent entry of concrete slurry, water and debris. Each cover has a 10-32 tapped ground hole.
Field Names: Concrete rings, concrete boxes, mud boxes, mud rings, deck boxes, high-rise floor boxes, octagon concrete rings. Concrete box covers, concrete box blanks, concrete box rings, mud box cover, mud box ring, octagon concrete ring covers.
UL File No: E526989
