FLECK 5800 Series Control Valves provide a common solution for a wide variety of filtration and softening applications. They are ideal for small residential and light commercial applications. The 5800 valve provides a 21 GPM service flow rate and 17 GPM backwash flow rate. A variety of connection options are available, ranging in size from ¾” to 1″, covering most residential homes. The Fleck 5800 Series Control valves are manufactured in the United States.