Get a great deal on the K-Rain 4603 Indexing Valve (6 Outlet, 3 Zone) from the 4000 Series at PlumbersStock. It offers a reliable and economical way of automating multiple zoned residential and small commercial wastewater systems. These patented indexing valves allow for the number of watering zones to be changed quickly and easily. They are ideally suited for both city water and pump applications and may also be used for onsite wastewater or effluent water applications. The simplicity of design and few moving parts ensures ease of maintenance and long service life.