5 Best Countertop and Under Sink Water Filters

Home Master TMAFC-ERP Artesian

With the growing amounts of microplastic particles and other dangerous contaminants in not only our tap water, but also in bottled water, affecting our planet, our health and our weight, it becomes increasingly vital to find the best way to purify your drinking water at home. Here, we’ll lay out the four best water filtration systems for your home.

**If you’re still wondering what the deal is with water, and what kind of water to drink, get the run-down on the pollutants contaminating our drinking water and what they do to our bodies. For more information, see: Why Am I Not Losing Weight?

As for us, we believe alkaline water is the best quality of drinking water. As the old saying goes, “No disease can exist in an alkaline environment.” (Which can’t be completely true, however the idea is if you make your body as alkaline as possible, you’re less susceptible to disease.)

Although, for this reason, our favorite filtration systems alkaline the water, we did include one that does not. You’ll notice, though, that it produces slightly acidic water. Before we get ahead of ourselves, let’s go over the most common filtering processes…

Drinking Water Purification Methods at Home

Here are the three most common natural ways to purify water at home using drinking water filtration systems:

  1. Carbon filters – typically removes chlorine, sometimes toxins like lead and mercury, and generally improves taste and smell. This filtration systems are mostly found in pitchers and sometimes in a filter mounted on the sink faucet. Not surprisingly, these are the least expensive you’ll find.
  2. Reverse osmosis – Many believe this to be the most effective because it removes most contaminants. Basically, it filters out anything larger than a water molecule. Probably for this reason, it is pricier than carbon filters. But after a while you’re saving on paying for bottled water. **There is a lot of debate on whether reverse osmosis is healthy because it removes healthy minerals. However, this only affects people who are not getting these minerals in their diet. So, for the purpose of these reviews, we’re assuming you’re in the camp that eats healthy.
  3. Ion exchange – A processes typically applied to hard water (water high in minerals like calcium or magnesium). The process reduces levels of calcium and magnesium, and often replaces them with sodium.

IN SHORT: you want a filter that can remove the harmful contaminants, especially the microplastics that contribute to obesity, cancers, and other diseases, and return the necessary, healthy minerals like magnesium and calcium to the water.

Although there is a place for these, we’re not going to bother with carbon filters in the top 5 because they don’t do much in terms of removing the harmful contaminants. We went with reverse osmosis and alkaline filters because these will produce the healthiest water you can drink.

With the foregoing in mind – the types of water and the different filtration processes – there are 4 water filtration systems on the market today that we would recommend.

1) APEX MR-1050 Alkaline – Countertop

As an alkaline filter, this balances the pH levels so that the water is less acidic. Consequently, the water it produces can boost immune support and detoxify our bodies. The system then adds healthy minerals like calcium, magnesium, and potassium back into your drinking water.

Each filter can go for 750 gallons of water. In other words, a typical family of four with average monthly water-usage would have to replace the filter every six months. The filter costs around $39.

At around $80, it’ll pay for itself quickly in savings from not buying bottled water anymore.


  • Various colors to choose from
  • Tastes better than bottled water
  • Tests at 8-8.5 alkaline level


  • Slow flow
  • Not really a con, but be sure to check to make sure your sink is compatible. See the diagram in the slider above. Or hit the button below to get more details

***There is one like this that you can get at a lower cost. It’s made by a different brand. As it’s new on the market, there aren’t a lot of reviews, and we haven’t tested it yet, we can’t claim it’s the best. It’s worth noting that the early reviews are coming back strong. So, if you’re interested in saving a few bucks, you might want to check it out. Let us know how well it works for you.

2) iSpring RCC7 5-Stage – Under Sink

  • iSpring RCC7 5-Stage Under Sink Filtration System

If you’re looking for something more permanent than a countertop filter, you probably want one that goes under the sink. The iSpring RCC7 is a canister system. It takes the water through reverse osmosis in five stages, removing impurities and purifying your water.


  • The iSpring RCC& 5-Stage runs through five stages, removing up to 99% of over 1, 000 contaminants like lead, chlorine, fluoride, arsenic, asbestos, calcium, sodium, and others. (It removes up to 98% of lead.)
  • It goes through reverse osmosis and then finishes through a carbon GEC filter (there’s a reason for this, as explained on another machine)
  • Housing is clear so that you can inspect it easily.
  • Simple do-it-yourself installation, although it can take a couple of hours.
  • Easy-to-follow how-to instructions comes with the product, and you can view installation videos on YouTube
  • Produces quality, natural-tasting water.


  • Not an alkaline filter. As a result, it produces slightly acidic water with a pH of 7.0 or below
  • Beneficial minerals are removed and not replaced, which could cause side effects in as little as a few months – if you’re not getting these necessary minerals in your diet
  • Flow rate is lower than others, however it does move through 75 gallons per day, so it’s sufficient for a big family
  • Due to the canister design, it may be more likely to have issues like leakage and maintenance difficulties

3)iSpring RCC7AK 6 Stage ALKALINE – Under Sink

  • iSpring RCC7AK 6-Stage Under Sink Alkaline Filter

Still want something more permanent, but you’ve gotta have the pH balance that comes with alkaline (we hear you!), this is one way to go.

The iSpring RCC7AK 6 Stage offers the same benefits as the 5 stage – reverse osmosis filtering removing up to 99% of harmful contaminants like chlorine, fluoride, lead, arsenic, asbestos, calcium, sodium and others. It provides simple DIY instructions, how-to videos on YouTube, and quality natural-tasting water.

The difference comes with the additional 6th stage, an alkaline remineralization stage which replenishes healthy minerals and produces a balanced alkalinity. So, you’ll get a more natural taste than the non-alkaline iSpring RCC7 5-stage model.


  • As mentioned above, the added alkaline remineralization stage replenishes healthy minerals to the water and produces balanced alkalinity
  • More natural-tasting water than the standard iSpring RCC7 5-stage model
  • Up to 99% removal of harmful contaminants like chlorine, fluoride, lead, arsenic, asbestos, calcium, sodium and others
  • Easy do-it-yourself installation with all necessary parts included. You won’t be left having to run to the hardware store


  • 1:2 waste, which means for every one gallon of water used, two gallons are wasted. It’s higher than ideal, but lower than some others. And, since you’re using it for drinking water, and not for the whole house, it really amounts to very little waste
  • The canister system provides a higher potential for leakage and maintenance issues

The price is relatively inexpensive for the value you’re getting. It’s only about fifteen bucks more than the standard model. So, if you’re looking for affordable reverse osmosis, you might as well get the one that balances your water’s pH. The worst it will do is give your immune system a boost.

4) Home Master TMAFC-ERP Artesian Full Contact 7-Stage – Under Sink

  • Home Master TMAFC-ERP Artesian Full Contact
    Home Master TMAFC-ERP Artesian Full Contact Under Sink

If you’re all-in on this quest for clean water, you might consider something a little…more than the previous systems. This one costs more, but there’s good reason.

The previous two under sink filtration systems were canister RO systems. Although they’re the best in their level of filtering, they are more susceptible to four problems:

  • Canister leaks
  • Slow flow
  • Maintenance difficulties – like changing the filters and locating leaks.
  • Acidic water (not a problem found in the alkaline systems)

Home Master TMAFC-ERP Full Contact is designed to address those problems. Consequently, it has an all-in-one filter and housing unit that is changed annually. It produces a stronger flow. It uses modular all-in-one filters for quick and easy maintenance. And you won’t get acidic water from this system because the system pushes water through a remineralization process and balances the pH.

This video explains it better:


  • Waste ratio of 1:1
  • All-in-one filter and housing
  • Stronger flow
  • Quick and easy maintenance
  • Water that is pH balanced
  • No tools necessary – the parts are designed to be able to snap into place following easy, well-organized instructions


  • Some might say the price is too high. But our belief is that often times you get what you pay for. Personally, I’d rather have a filtration system I can rely on to produce clean, balanced water safe for drinking than try to save a few bucks only to have to pay for it in the end. For what it does, it really isn’t very expensive at all.

5) Brondell Circle Reverse Osmosis Water Filtration System

  • brondell circle reverse osmosis water filtration system
    Brondell Circle Reverse Osmosis Water Filtration System

Brondell Circle reminds me of Apple because it’s clear they were thinking of the user when they deigned this system.

It’s sleek, aesthetically pleasing to the eye, compact and convenient all in one. It’s easy to install. easy to use, and easy to maintain.

The Brondell Circle patented technology makes it 10 times more efficient than other RO systems. It saves water and money and refills in under an hour.

It’s a four-stage filtration system, using four advanced filters.

The design doesn’t hurt either. It has an elegant, designer chrome faucet and a sleek-looking compact reservoir. In short, it doesn’t look like an eye-sore when you open the cabinet under the sink.

The brand is Gold Seal certified by the Water Quality Association. Which means we can trust its performance.

And there’s an LED light to remind us when to change the filter.


  • Sleek, elegant design
  • More efficient than other RO systems
  • All in one filter makes it easy to change the filters
  • App for easy monitoring


  • At $60/pack, the cost of the filter replacement can be higher than others

Learn More about Plastics in our Drinking Water, how it Affects Weight Loss