The APWC-NWS150M is a 1.5 cu. ft. Time Clock Water Softener. Fleck 5600 control valve. 45,000 grain capacity. 8 GPM flow rate. The APWC-NWS150M is a residential water softener. It is 1.5 cu. ft. Time Clock Water Softener with a Fleck 5600 control valve. It has a 45,000 grain capacity. The flow rate is very impressive at 8 gpm - ensuring treated water at all times for your household. The system reduces scaling caused by hard water. The design is highly efficient and helps to run many automatic functions. The water softener helps in removing unsightly issues like soap curd, spotting on glasses, and ring-like marks on tubs & sinks - typical hard water-related problems. The safety brine valve helps to eliminate the issue of overflowing of the brine tank. The motorized piston control valve assists the fully-automatic operations. The system comes with a limited warranty supported by factory-backed technical support services.