Vari-Flo Multiport 7-Position Control Valve - 1-1/2 Inch Top Mount (Sand) - 100 GPM fitting-connection_Slip x Slip x Female Active Ingredient of the DuraChlor

Active Ingredient of the DuraChlor Alkalinity Increaser: 100% Sodium Hydrogen Carbonate

built-in acoustical muffling reduces operation noise even more

giving you 150 tests per 50 disks

with an enclosed bronze impeller

Vari-Flo Multiport 7-Position Control Valve - 1-1/2 Inch Top Mount (Sand) - 100 GPM fitting-connection_Slip x Slip x Female Active Ingredient of the DuraChlorHayward'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 seven 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