Choose Options Quick view Clack WS1 TWIN Twin Alternating Softener MSRP: Now: 1,627.73USD - 2,023.87USD Was: Overview: For application where continuous supply of soft water is needed we offer dual tank softeners with WS1EE the Twin Alternating Control Valve. All Clack series water softeners are... MSRP: Now: 1,627.73USD - 2,023.87USD Was: Choose Options Quick view