The APWC-NWS200M is a 2 cu. ft. Metered Water Softener. Fleck 5600 control valve. 56,000 grain capacity. 8.5 GPM flow rate. The APWC-NWS200M is a residential water softener. It is a 2 cu. ft., Metered Water Softener with a Fleck 5600 control valve. It has a 56,000 grain capacity. The flow rate is quite impressive at 8.5 gpm. The system reduces scaling caused by hard water. The design is highly efficient and runs some quick, fully-automatic operations. The water softener helps to eliminate typical hard water issues like spotting on glasses, foaming, and formation of ring-like markings on sinks or tubs. The safety brine valve helps to address problems like overflowing of the brine tanks. The motorized piston control valve offers some very useful fully-automatic operations. The system comes with a limited warranty supported by factory-backed technical support services.