Claim: A curb box, typically located between a building and the district's water main lines, is a vertical cast iron sleeve, accessible from the public way, housing the shut-off valve for a property's water service line.
Evidence: A curb box (also known as a valve box, buffalo box, or b-box) is a vertical cast iron sleeve, accessible from the public way, housing the shut-off valve (curb cock or curb stop) for a property's water service line. It is typically located between a building and the district's water main lines and usually consists of a metal tube with a removable or sliding lid, allowing access to the turn-key within.