Visit us at www.calspas.com Cal Spas Hot Tubs, Spas and Swim Spas for Sale. Cal Clarity System. The Cal Clarity System covering model years from 2006 to 2010 About Cal Spas Today, the celebrated hot tub maker is world renowned as the #1 Global Manufacturer of Home Resort Products. Follow Cal Spas' journey throughout the years and learn about our achievements and innovations. Cal Spas distinguishes itself from other hot tub manufacturers by offering the best spa and hot tub features in the Home Resort industry. Discover how a Cal Spas hot tub in your home can benefit you mentally and physically. Enjoy crystal clear hot tub water with unmatched water clarity solutions, like Bio-Clean filters, Ozonators and Bromine generators. Best of all, the unique construction process of every Cal Spas hot tub ensures lasting enjoyment for years to come. Made in USA Made in America cal spas Cal Spas proudly produces premium collections of lifestyle products from its headquarters in Pomona, California, USA and distributes them worldwide through a network of specialty dealers. Visit us at www.calspas.com.