Zodiac W28155 Nature2 Mineral M-Style Cartridge Replacement for Algae Control

Price in 2021 was much more than 2020. Waited until July when this seller had a better price than other pool supply outlets. It was still more than last year but this filter works in our unit. It is the correct one and arrived new and on time.

Like others are saying, it gotten very expensive. So you do not need as much chorine, but this works out to cost as much as any money you would save with this.

If your filter system is set up to accommodate this I highly recommend it. I am less than diligent about my pool chemistry, but have absolutely no issues with water quality, algae or other growth.Was a couple of years after I bought the house that I realized what it was. The media inside broke down and I was finding little plastic pellets in the pool. Don't know for sure that it was the cause, but no problems since replacing it on a regular cycle.

I have had this system for 20 years. Works good.

The photo differed a little bit from the W28155 I had, so I was a little hesitant to order this at first. However the correct model came and it looks good! Shipping was faster than expected, three days earlier than the closest estimated delivery date. My pool thanks you!

Great for our pool

Nothing

I read the manufacturer discontinued this product (after more than 20 years in production). Too bad, because it has worked well for me. So if I cannot find this cartridge for purchase in the future I will have to install a different auxiliary sanitizing system for my swimming pool.