Flush Cover, Solid Brass with Brushed Finish, 1000 Pound Load Limit, For Flush Service Round Floor Box, 140 Cubic Inches, Opening Diameter 5-31/32 Inches, Base Diameter 8-1/8 Inches, Depth 6 Inches, 1 Inch and 1-1/2 Inch Conduit Hubs, Non-Metallic, Minimum Concrete Depth Flush 4 Inches Furniture Feed 3-1/2 Inches