Spa Marvel is an all natural hot tub treatment product that can reduce and eliminate the need for many of the chemicals used in traditional spa water care
One full bottle of Spa Marvel Hot Tub Treatment & Conditioner treats any tub up to 500 gallons (2000 liters), and lasts 3 months with regular use. Every 3 months simply add another bottle. In a swim spa use 1 bottle once a month.