4-1/2" Round Concrete Tight Deep Floor Box FB400C (Pack of 6)

About :

As indicated, it usually has a diameter of about 4-1/2 inches. The depth can vary but is typically greater than standard boxes to accommodate more or larger connections.
These floor boxes are often made from durable materials like steel or a heavy-duty polymer to withstand the pressure and environmental conditions found in concrete installations. This feature means the box is designed to prevent the ingress of concrete, ensuring the integrity of electrical connections. This is often achieved through specific sealing technologies or gaskets. The deep design allows for more wiring and potentially more connections or ports. It's important to check the specific capacity in terms of cubic inches, as well as the number and size of conduit knockouts. 

Also known as:

4.5-inch Round Embedded Electrical Junction Box, Industrial-grade Round Concrete Floor Outlet Box, Heavy-duty Concrete Floor Power Box, 4-1/2 Inch Circular Concrete Recessed Box.

Specification: 

Material : Galvanized Steel
Product Height : 4.43 Inch
Product Width : 4.87 Inch
Cubic Capacity : 54 (884.8)
Side Knockouts : (8) 1/2" & 3/4"
UPC : 785592120014

Features:

• Side ko's offer multiple entry points into box
• Leveling screws for depth adjustment
• Minimum pour Depth 4"