Features:

• Destroys bacteria
• effective against algae when combined with MPS.
• Works with most spa filters. (Minimum filter length is 7″ minimum filter hole diameter is 1-1/4″)
• Reduces the required amount of chlorine needed in a spa.
• Drops inside the filter cartridge for easy installation.
• Not a replacement for Hotspring Freshwater AG + Silver Ion Sanitizer 71325
• Low Maintenance, each cartridge lasts 4 months

See Technical Specs Tab to see if this cartridge will work for your spa

• Do not use with: Baquacil, Baquaspa, Revacil, Oxyline or other chlorine free disinfectants of the PHMB type (or “biguanides”) or copper containing products