Fixture Support Box, Round, 3-1/2 Diameter, Non-Metallic, Polycarbonate

Fixture Support Box, Round, 3-1/2 Inch Diameter, Non-Metallic, Polycarbonate, Black, For Use With Nonmetallic Sheathed Cable

Raco Part # 299 - Raco 4 In. Round Ceiling Rated Box 2-1/8 In. Deep With Five 1/2 In. Ko's - Electrical Boxes - Home Depot Pro

Gardner Bender 1-Gang Old Work Round Ceiling Electrical Box - BOX-RC18

Electrical Boxes - Farr's Hardware

Capital Electric Supply

Boxes, Enclosures, Covers, Hangers Outlet Boxes, Covers & Bar Hangers Ceiling Boxes, Braces & Accessories

3-1/2 x 2-1/8 in. Snap-In Bracket Mount Round Ceiling/Fixture Outlet Box, Brown

13 Best Round Electrical Box Cover for 2024

3-1/2 Diameter, Old Work Ceiling/Fixture Box with Speed Clamps, Thermoset Fiberglass, Depth: 2. Cubic Inches: 14.0. Fixture Weight: 15 lbs.

Fixture Support Box, Round 3-1/2

Viking Electric