A vertical pipe WordNet 3.0 & Open English WordNet

A standpipe is a freestanding pipe fitted with a tap which is installed outdoors to dispense water in areas which do not have a running water supply to the buildings. Wikipedia

A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water to the fire. Wikipedia

An external freestanding pipe to provide running water in areas with no other water supply Wikipedia Disambiguation

A rigid vertical or horizontal pipe to which fire hoses can be connected Wikipedia Disambiguation

Freestanding water pipe with tap Wikidata

A vertical pipe into which water is pumped so that a desired pressure is available at the bottom. Wiktionary