Pool Rx+ is the powerful, updated formula from the trusted Pool Rx brand. This breakthrough algaecide contains three active ingredients - Copper Sulphate, Zinc Sulfate, and Silver Nitrate - providing unmatched protection for your pool. The EPA Registered and NSF/ANSI 50 Certified Pool Rx+ Red & White unit supports 2,500 to 5,000 galslons of water, keeping your pool crystal clear and healthy. By reducing chemical demand and improving water quality, Pool Rx+ simplifies your pool care routine for up to 6 months. For optimal results, start each swim season with a new Pool Rx+ unit. If you enjoy your pool year-round, simply add a Pool Rx+ booster after 6 months or at the first sign of algae. The Pool Rx+ system is designed to rejuvenate its minerals for a full year, providing long-lasting performance. Plus, it's compatible with any size pool using Chlorine, Salt, UV, or Ozone sanitizing systems. Upgrade to Pool Rx+ for a cleaner, safer, and easier-to-maintain pool. Say goodbye to algae and hello to a season of worry-free swimming!