The 4000 offers a reliable, economical way to automate multiple zoned residential and small commercial irrigation 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. The 4000 valve is available in 4 or 6 outlet models. A quick change of the cam allows the valve to operate from 2 to 6 zones. The valve will operate with flows as low as 10 GPM (38 LPM) and at pressures of 25 to 75 PSI (1,7 to 5,2 bar).