Fleck 9100 SXT Twin Tank Metered On-Demand 80,000 Grains Per Tank Water Softener 24/7 Soft Water Complete Twin tank water softener provides continuous soft water Complete system comes with 5 yr warranty on the valve and 10 yrs on the tanks With a twin-tank system featuring the new Fleck 9100 valve, customers benefit from soft water 24/7 We love to help our customers during isntallation & programming Free bypass comes with male threaded yoke for easy installation