BELL N3R Nonmetal White Round Weatherproof Electrical Box, 5 Outlets at 1/2 in. or 3/4-in., with Plugs and Bushings PRB57550WH - The Home Depot
Amazon.com: (2 Pack) AP-12031, 5 Inch White Metal Ceiling Blank-Up Cover, Used to Cover 3-1/2 Inch Round/Octagon Box Openings In Ceilings or Walls, Mounting Screws Included, Holes Are Spaced 2.75 Inches :
Sigma Engineered Solutions Metal Weatherproof New Work Round Electrical Box in the Electrical Boxes department at Lowes.com
Garvin CBC-350 5 Inch Ceiling Blank-Up Covers, White, For 4
Commercial Electric 4 in. Round Metallic Weatherproof Box with (5) 1/2 in. Holes, Gray WRB550G - The Home Depot