ISpring FA15 Alkaline Replacement Water Filter Cartridge – 10-Inch Inline Quick-Connect, 3-Layer With Mineral Balls, Calcite & Corosex, For RO Systems

About This Product

This iSpring FA15 alkaline filter is a great addition to any reverse osmosis system.
RO systems do a fantastic job of removing contaminants, but they also strip out healthy minerals and can leave the water slightly acidic – pH around 7.

0 or below.
This inline filter adds back natural minerals like calcium, magnesium, sodium, and potassium, which not only improves the taste but also raises the pH by 0.

5 to 1.
2 points.

It's a 10-inch cartridge that installs inline with a quick-connect fitting – super easy to replace, no tools needed.

It lasts about 6 months or up to 1,500 gallons, whichever comes first.

The mineral media includes calcite and Corosex, which are natural sources of calcium and magnesium, along with mineral balls that also add trace elements back into the water.

You'll notice the water feels smoother and tastes more like natural spring water.

The minerals are structurally small molecules that your body can absorb easily – and it makes the water more hydrating.

The TDS value will increase slightly (usually 10-20 ppm), but that's just the healthy minerals doing their job.

Works with most under-sink RO systems, including many name brands.

If you've got a standard 5-stage RO and want to improve the taste and alkalinity of your drinking water, this is a simple, affordable upgrade.
And iSpring's been in the water filtration business for over a decade, so you know it's a reliable product.