Clearblue Ionizer System for Hot Tubs (2,500 Gallons, 110V – 240V)Detailed Product Description Reduce the chemical concentration in your spa or hot tub by up to 90%! The Clearblue Ionizer System for spas combines ancient knowledge with modern technology for the most advanced digital ionization system available worldwide. The Clearblue Ionizer System for Spas and Hot Tubs is the natural solution to controlling bacteria and algae in spas. For use with spas up to 2,500 gal 9,500 L in size. Features: Clean, Clear and