Steel City 2-Gang 4 in. x 1-1/2 in. Deep Square Metal Electrical Box (Case of 50) 5215112-50R - The Home Depot
1-7/8-Inch Deep Handy Box | eBay
Steel City 58351-1/2 :: Handy Box, 1-1/2" Deep, 1/2" KOs, Drawn, Steel :: Rexel USA
Raco 8650 4" x 2" Handy Box, 1-1/2" Deep, 1/2" End Knockouts, Welded - Electrical Boxes - Amazon.com
5 Pcs, 4" Square Extra Shallow Junction Box, 1-1/4 In. Deep, (12) 1/2 In. Side Knockouts, 0.0625 Galvanized Steel for Lighting Fixtures, Switches, Receptacles Or Outlet Devices - Walmart.com
RACO 1-7/8 in. Deep Single-Gang Drawn Handy Box with 1/2 in. Knockouts (50-Pack) 8660