Autotrol 255 460i electronic metered demand regenerated 1.0 cubic foot (32K) softener using regular mesh resin in a 9" x 48" tank with gravel underbed, a 1.05" distributor tube and a 256 by pass valve with 3/4" or 1" soldered copper connections, a 2310 float controlled safety brine system in a 15" x 17" x 36" brine tank with a salt grid. Free Shipping. $510.00