Fleck TwinFlo 100e electronic metered immediate regenerated twin tank .75 cubic foot (24K each tank) softener using regular mesh resin in 8" x 44" tanks with 1.05" distributors and gravel underbed with a 3/4" or 1" stainless steel or Noryl by-pass valve, including a 2310 safety brine system in a 15" x 17" x 36" brine tank with and a salt grid. Free Shipping. $750