APEC Water RO-PH90 at $299.99 for Alkaline Water

What this under-sink system is built to do

The APEC Water RO-PH90 is a six-stage under-sink reverse osmosis system that filters your tap water and then adds high-purity calcium carbonate to raise the pH. The result is alkaline water on demand at your kitchen sink.

We'd consider it a strong fit if your household already drinks a lot of water and you want a dedicated alkaline supply without buying bottles. It also has JG quick-connect fittings and a lead-free metal faucet.

What today's price gets you

At $299.99, this RO-PH90 comes in around $23.19 below the typical price over the last 90 days of $323.18. That is a modest 7 percent off a system built to cover drinking and cooking water for a busy kitchen.

You are paying for the six-stage filtration, alkaline mineral addition, and the included designer faucet and tubing. If you only need basic sediment and carbon filtering, a simpler system costs less.

Fit, upkeep, and what to plan for

The unit sits under the sink, and the included faucet needs a standard mounting hole. Confirm your cabinet has enough depth and height for the filter housings and tubing.

The alkaline stage uses calcium carbonate, which is a consumable. You will need to replace that cartridge periodically to keep the pH boost working, so ask the manufacturer for the filter schedule and cartridge costs.

Who should skip this system

Skip the APEC Water RO-PH90 if you do not want to drill into your countertop or if you cannot reach a nearby power source. It is also wrong for you if you rent and your lease forbids plumbing changes.

If you only need basic chlorine removal, a simpler carbon filter will cost less and take up less space. This system makes the most sense when you specifically want alkaline water from your kitchen tap.

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