Vari-Flo Multiport 6-Position Control Valve - 2 Inch Side Mount (D.E.) - 100 GPM heater-certification_None Seven grids are required

Seven grids are required

This Stenner chemical pump #85MFL4A4SUAA provides reliable chemical feeding for your swimming pool

Four elements are required

with alternating colors every 3 feet in the center

Vari-Flo Multiport 6-Position Control Valve - 2 Inch Side Mount (D.E.) - 100 GPM heater-certification_None Seven grids are requiredHayward's Vari Flo XL multiport control valves, made of reinforced thermoplastic material and engineered for maximum flow, are the professional's choice in multiport valves. All Vari Flo control valves feature an easy to use lever action handle that lets you "dial" up to six valve filter functions: filter, backwash, waste, rinse, closed, winter or recirculate. Complete with an integral sight glass that lets you see when the backwashing cycle is