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.
Unlike the competitors, this valve installs though a single 1-3/8" hole. The competitive products are installed through a 2" x 4" square opening; this can only be accomplished with manpower and a chisel. Since the PRIER C-634 installs through a core drilled 1-3/8" hole, our commercial contractor customers are telling us it installs in half the time of the competitors