Before revision: 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.
After revision: A curb box (also known as a valve box, buffalo box, , or in British English a stopcock chamber 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.