Fleck 5600 Softener Control Valve with 12 Day Skipper Wheel and "L" bracket style power head ( Now only in 24 volts includes Transformer ). Order the optional Designer Cover, if you will be using this Valve outside, or if you want to cover the controls.
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Tank Diameter - How To Measure and Why
Free Service Manual Download =https://www.nelsencorp.com/customer/docs/SKUDocs/5600_Fleck%20Service%20Manual.pdf