Nature2 W28125 Replacement Mineral Cartridge, for G25 Pool Sanitizers

We built our pool 5 years ago, and installed this "extra" filter during construction. We replace the cartridge every spring, and our pool maintenance is easy. We also like the fact that we can keep our chlorine at 1/2 the normal level (0.5 ppm) and still maintain clear, clean pool water. Our pool water feels like bath water, no chlorine smell or itchy skin. This filter costs $130 in local pool stores, so this price online is VERY reasonable! And it saves us money in the long run because we purchase less chlorine.

I have used this product for over 20 years which provides automatic chemical feeding in my pool. Allows for less time in me adding chemicals. This I not a replacement for regular chemical adding, but does allow for reduced need to monitor and add. Great product and best price on Amazon. I recommend.

Item number was 1 digit off. Ordered 45, received 46. Fit fine and works with filter system.

Always purchase online—much better price for same quality as in store spend. Would recommend this seller.

Fair pricing and very fast delivery! Thank you!