1900 Electrical Box: What is it (And How Did it Get its Name)? | Electrical4U
RACO Gray Metal New Work Deep Square Interior Electrical Box in the Electrical Boxes department at Lowes.com
Electrical Box Types & Sizes for Receptacles when wiring receptacles (outlets) - How to choose the proper type of electrical box when wiring electrical receptacles
Catalog Pages: FS and FD Cast Hub Device Boxes, May 2021