Part Number: 034481006213 <br> Part: Carlon B520A-UPC 4" Round Ceiling Box, Nail-On, 2-1/4" Deep, Non-Metallic <br> 4" Diameter, Nail-On, Combination 3/0-4/0 Ceiling/Fixture Box, Non-Metallic, Depth: 2-1/4". Cubic Inches: 20". Fixture Weight: 50 lbs. Includes: Nails, Clamps. <br> Diameter:4 in <br> Material:Non-Metallic <br> Type:Fixture Box, 4/0 Box, 3/0 Box, New Work, Ceiling Box <br> Product Depth:2 1/4 in <br> Cubic Inches:20 in <br> Size:4 <br> Also known as: 034481006213, CARB520AUPC, Carlon, B520A-UPC, Round - New Work, Ceiling/Fixture Boxes, Boxes - Non-Metallic, Boxes, Enclosures, 4/0 nail on, Union Box <br> Equivalent to: </p><ul></ul>