improvements in present day fire hydrants are presented . the improvement relates to a fire hydrant where the above ground structure is essentially removed and is replaced with an adaptable connection . the connection uses the same mounting hole pattern as used in the above ground hydrant . in operation , the adaptable connection is protected by a hinged cover that is opened to provide access to the adaptable connection . the adaptable connection includes a bayonet type connection where a portable fire hydrant is secured and rotated to start the flow of water . the adapter includes an electronic communication device that transmits real - time information on connection and flow characteristics . the adaptable fire connection eliminates the appearance of the fire hydrant , the potential of a vehicle hitting a fire hydrant and the material cost associated with above ground fire hydrants .