Water Pre-Filter (7,500 Gal) Spa and Sauna Brand

This pre-filter attaches to a garden hose to fill spas, reducing contaminants and helping with start-up issues in saltwater tubs.

• The description claims that the filter reduces contaminants like chemicals, chlorine, suspended solids, and heavy metals.
• The description claims that filtered, softened water eliminates many start-up issues with saltwater tubs.