Perfect for light commercial/heavy residential systems that require twin-tank conditioning capabilities. Five-cycle control delivers controlled upflow backwash downflow brining slow rinse rapid rinse and timed brine refill ALL performed with conditioned water. The most salt efficient valve available because you don't need to program in a reserve. Regenerates immediately when needed as often as every 90 minutes if required. Continuous flow rates up to 18 gpm on 3/4" valves 21 gpm on 1" valves. Handles up to 16" softeners. Softeners include Fleck 9000 meter valve with 1600 time brining 3/4" stainless steel bypass blue polyglass mineral tanks charcoal 15" x 17" x 36" brine tank (except 80000 and 110000 grain) with #500 air check and standard mesh or fine mesh resin. General Water Softener Specifications All about water hardness and water softeners How to select a water softener Replacement Control Heads Replacement Resin Great Tool Water Softener Calculator

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