Pack of Box and Cover 4'' Square Electrical Box, 2-Gang Duplex Receptacle Exposed Work Cover, Crushed Corners, Welded Construction, Ten 1/2'' and Six TKO Knockouts, Raised Ground, 2-1/8'' Deep - Amazon.com
YXX-TECH Two Gang Electrical Box, Suitable 1/2-Inch or 3/4-Inch Electrical Conduit Weatherproof Outdoor Switch Outlet Box, UL Listed,Plastic Junction Box Outlet - Amazon.com
A238-CARLON - Carlon A238-CARLON - 2-Gang ENT Non-Metallic Outlet Box w/ Eccentric Knockouts, 4" Square, 38 Cubic Inch
RACO 2-Gang Gray Metal New Work/Old Work Standard Square Ceiling/Wall Electrical Box in the Electrical Boxes department at Lowes.com
Carlon 2-Gang 32 cu. in. PVC New Work Electrical Box with Bracket B232BR - The Home Depot
RACO 2-Gang Gray Metal New Work/Old Work Standard Square