Hayward SP071621 Vari-Flo XL multiport control valve, is engineered for maximum flow at lower pressure drops is the choice in multiport valves.

Filter - For normal filtering and regular vacuuming
Backwash - For cleaning filter sand bed of accumulated debris
Rinse - Use after completing backwash cycle to ensure all dirty water is rinsed out of the filter to waste
Waste - By-passes the filter for draining or lowering pool water level and for vacuuming heavy debris directly to waste line
Recirculate - Water is recirculated through the valve, by-passing the filter
Closed - Shuts off the flow from the pump to the filter
Winter - For winterizing (SP0714T Only)

Hayward - SP071621 Multiport Vari-Flo Control 2" FIP Valve Top Mount, Black