Fire hydrant
A fire hydrant or fireplug was a device that, when connected with a hose, provided a steady stream of water to enable a fire to be extinguished.

In 2268, a landing party from the  beamed down next to a yellow fireplug at an intersection of two streets in the Northside Territory of Sigma Iotia II. () 

A yellow and red hydrant was also part of the Dixon Hill holoprogram. ()

External link 
 
Tools
The Dixon Hill Series