64k Fleck 5600SXT Digital whole house water softener 64,000 grain high flow SXT 64,000 grain capacity High Flow whole house softener, Metered digital Fleck 5600SXT valve 2 cu. ft. Resin, 12" x 48" tank and larger round 18" x 33" brine tank, bypass valve included 5 year warranty on head, 10 year warranty on tank, complete system ready to install and use! Treats up to 16 gpm flow rates, DIY installation instructions, Complete "on demand, metered" Remove hard water, prevent scale build up, use less soap, protect plumbing and appliances!