RACO Gray Metal New Work Standard Octagonal Ceiling/Wall Electrical Box in the Electrical Boxes department at Lowes.com
Hubbell-Raco 167 4-Inch Octagon Box, 2-1/8In. Deep, (2) 1/2-Inch & (2) 3/4-Inch Side Knockouts, (Pack of 25) - - Amazon.com
RACO 1-Gang Gray Metal New Work/Old Work Standard Octagonal Ceiling/Wall Electrical Box in the Electrical Boxes department at Lowes.com
Octagon Electrical Boxes and Their Uses
Iberville 2-1/8" Octagon Wiring Box | Home Hardware
Round 4'' Toggle Switch Octagon Box Cover Plate - White
Steel City 4 in. New Work Metal Octagon Electrical Box with 1/2 in. Knockouts (Case of 30) 5415112-30R
Iberville Octagon Receptacle Cover with Knockout | Home Hardware
Hubbell Raco 4 in. Octagon Box, Drawn, 1-1/2 in. Deep, Two 1/2 & Six 3/4 in. KO's, Raised Ground, Gray, (126): Electrical Boxes: Amazon.com: Tools & Home Improvement