Duel Alternatiog (SYSTEM7) Fleck 2900 NXT. Available in 120k, 150k, 210k,300k, 450k, and 600k grain capacity.  Includes 2900/1700 Brine valve, Fleck 2" digital NXT2 metered brass control valve with a fiberglass tank. Includes 8% cation softening resin. All brine tanks include a brine safety float valve. Includes 8 feet of brine line. Includes 1 flow meter. The Fleck 2900 rated flow rate is 68 gpm with peak flows at 95 gpm. Comes with a manufacturer's warranty. Ships common carrier.