Nature2 G35 Mineral Cartridge for Inground Pools up to 35,000 Gallons | Mineral Cartridge for Professional G & Pro G Plus Pool Sanitization Vessels | Authentic Replacement Pool Filter Cartridge

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.

Great product really cuts down on my chlorine use and other chemical use One year I got cheap and didn’t purchase it, and I ended up spending so much in chlorine and algicide. It was crazy not to mention the fact that it was a constant headache trying to keep the pool clear. This product keeps the pool nice and crystal clear and sparkly would not go without it again.

I needed it for my inground pool. The price is good.

These seem to really stabilize The pool chemistry, every year we’ve used these we’ve never had a cloudy water event. One time the pool went without chlorine for almost five days and the water stayed crystal clear, which without this filter it would begin to turn cloudy after a few days. We do not try to reduce the chlorine level or save money with this cartridge, we use it because everything seems to run better and be more stable in terms of chemistry. The pool sort of becomes idiot proof for the season when it’s in. Not the best reasoning for using something but overall I’m relieved to have some thing that works so well I don’t have to actually know anything about it, the lack of problems means I don’t spend time learning about how to solve them.

I have used Nature2 cartridges for years and have purchased them locally. I tried buying this from Amazon this year. It arrived as I ordered, but the package did not have the registration card in it; it did have instructions, though, as expected. When I tried to take advantage of a rebate, I learned that the registration card was necessary. Thus, only 4 stars. I will not purchase a Nature2 in the future from Amazon.

Product is as advertised. If you have a pool that requires this type of maintenance then you saved yourself money by buying it.

Second one of these I've installed since I moved into this house in 2 swimming seasons. They seem to keep the water pretty clean and don't have to over do it with chemicals - except for the Texas heat/sun breaking down my chlorine in quick order. Quality for price is questionable, as I've had units loose the mineral contents and find the pebbles on the pool floor, one replaced under warranty which N2 was easy and supportive to replace.

Value