What is a back box?

Everything You Need to Know About Electrical Socket Back Boxes, Electrical Socket Back Boxes

Back Boxes

HONDA JAZZ EXHAUST BACK BOX REAR SILENCER 1.2 PETROL 2002 - 2008 MK1

ELECTRICITY BACK BOXES Buster + Punch: Rest of World

USJBS 1 gang US Back Box (Pack of 10) - Home Automation Company UK

Back boxes - Swtch

Is backbox delete MOT fail? - BMW 3-Series and 4-Series Forum (F30 / F32)

See the symptoms on a damaged exhaust back box and get it replaced

Back Boxes, Socket Back Boxes