Spa Frog Mineral System
THE ONLY MINERAL PURIFIER SPECIFICALLY DESIGNED FOR YOUR BROMINE SPA CHEMICAL SYSTEM! Reduces spa maintenance by automatically controlling bacteria and helps keep the spa pH level neutral. Reduces bromine and other spa chemical consumption by up to 50%. Uniquely designed mineral combination makes spa water feel silky soft and look crystal clear. Place the Spa Frog Mineral Purifier inside the core of a spa filter cartridge, skimmer tray or filter well. Each Spa Frog Mineral Purifier lasts up to 4 months.