This C-634 is truly a unique product in an industry filled with copies. It installs in half the time than the competitors and has flow characteristics that are significantly better than any other product available. The PRIER C-634 provides a year round source of water to areas of structures that are subject to freezing temperatures. The hydrant valve is connected to the supply piping in the heated portion of the structure, eliminating the possibility of freezing. To assure freeze protection, the hydrant will drain even with the hose attached and under pressure.