This EPA-registered mineral purifier cartridge (23434A) utilizes a patented silver-chloride compound to naturally reduce bacteria levels in spa water.

Designed to last 4 months or until the next refill, this cartridge works in spas up to 600 gallons, providing effective, long-lasting protection.

When used alongside standard sanitizers (chlorine, bromine, ozone, or non-chlorine oxidizers), it allows for up to 50% reduction in chemical usage while maintaining water clarity and balance.

Superb water care convenience: drop it in the filter, skimmer well, or use a string for easy retrieval—no measuring or dosing required.

Helps maintain neutral pH and balanced chemistry, enhances filter performance, reduces maintenance time, and delivers softer spa water with less odor.

Suitable for all spa systems—chlorine, bromine, saltwater, mineral, and ozone; simple to replace and eco-friendly due to reduced chemical consumption.