Hot SpringFreshwater AG+ Cartridge Mailer Pack

Hot Tub Sanitization

You can use this in conjunction with chlorine, or non chlorine shock. I use dichlor (regular hot tub chlorine) because it's cheaper and test kits (strips) are readily available. I maintain a much lower level of chlorine daily than I would need to without this cartridge and the tub is crystal clear. I shock once a week with either dichlor, or non chlorine shock. This cartridge makes things easier to keep the tub clear with less chlorine. Worth it.

These Silver Ion Cartidges are a must for Hot Springs Spas. It enables you to keep the chlorine level lower. These are genuine brand new Hot Springs units with everything but the box for a discounted price. I think these cartidges should not cost more that $20 even with the box but being proprietary, they can over charge people.

Same as product sold by Hot Springs, but considerably cheaper. Works same as original that came with spa. Will be ordering from here in the future.

Easy to use and very effective. Keeps the chemicals that I have to use to a minimum.