sq-jbox-s Square Junction Box with 2 Screws (Steel)
BestTong Aluminum Alloy Metal Mini Dustproof Waterproof IP66 Small Junction Box Extruded Industrial Structure Outdoor Universal Electric Project Enclosure Grey 2.5 x 2.2 x 1.3 Inch(64mmx58mmx35mm) - - Amazon.com
Steel City 1-Gang 20 cu. in. New Work Adjustable Metal Electrical Wall Box MB120ADJ-6R - The Home Depot
RACO 2-Gang Square Metal Electrical Box Cover in the Electrical Box Covers department at Lowes.com
Metal Junction Box | Metal Outlet Box,
BestTong Aluminum Alloy Metal Mini Dustproof Waterproof IP66 Small Junction Box Extruded Industrial Structure Outdoor Universal Electric Project Enclosure Grey 2.5 x 2.2 x 1.3 Inch(64mmx58mmx35mm) - - Amazon.com
Steel City 1-Gang 3 in. 2-1/2 in. Deep New Work Metal Switch and Outlet Electrical Box with CV Bracket LXV-25R - The Home Depot
1 Gang Rectangular Electrical Junction Box Galvanized Steel 2x4 Inch
Steel City 1-Gang 4 in. New Work Metal Electrical Wall Box with Ground Bump 521511234GB-50R - The Home Depot
Metal Junction Box – MFS Parts
11 Types of Electrical Boxes and How to Choose One
Standard enclosures and junction boxes
BestTong Aluminum Alloy Metal Large Dustproof Waterproof IP66 Junction Box Extruded Industrial Structure Outdoor Universal Electric Project Enclosure Grey 9.4 x 6.3 x 4 Inches(240mmx160mmx100mm) - - Amazon.com
RACO 2-Gang Square Metal Electrical Box Cover in the Electrical Box Covers department at Lowes.com