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The Best 5 Under Sink Water Filter Systems – Reviews & Guide 2020

Having an under the sink water filtering system is a great way to ensure that you and your family have fresh drinking water the whole time. Naturally, if you’ve never purchased such a product before, things might get a little confusing at first. Don’t worry, we’re here to help you find the best under sink water filter system.

editor’s choice
Frizzlife Under Sink Water Filter
Frizzlife Under Sink Water Filter

It can eliminate up to 99.99 percent of the lead found in water, as well as a variety of different contaminants that nobody should ever have to drink.

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high-end option
APEC Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage
APEC Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage

Supreme quality - designed, engineered and assembled in USA to guarantee water safety & your health.

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customer’s choice
CuZn UC-200 Under Counter Water Filter
CuZn UC-200 Under Counter Water Filter

The CuZn UC-200 will not resolve issues caused by water being excessively hard (such as lime scale mineral deposits).

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best overall
APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System
APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System

Super capacity filters guaranteeing to remove chemicals, taste and odors. Feed Water Pressure: 20-85 psi

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budget buy
iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System
iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System

Effectively removes lead, arsenic, heavy metals, VOCs and harmful chemicals cloudiness and colors and more

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Features to Look For

Everyone wants a water filtering system that gets the job done, but what are the exact features to look out for?

  • The filtering capacity of the system is important because some filters are capable of removing a wider range of contaminants, even the smallest ones.
  • You also want a system that doesn’t impact the normal water pressure in your household. This is important because if your house already has lower water pressure and the system decreases it even more, it will be really frustrating to try and fill up a glass of water.
  • The longevity of the cartridge is another important thing to keep in mind and pay attention to. Every good water filtering system should have a cartridge that lasts at least six months. Keep in mind that a filter with a longer lifespan actually means that it’s better built. When you see that a cartridge can last for years, it means that the components used to make it are of higher quality.

Top 5 Best Under Sink Water Filter System Review

1. Frizzlife Under Sink Water Filter 

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We debut with our series of short reviews by talking about the Frizzlife under the sink water filtering system. This system is based on a two-stage filtering process that works with 0.5-micron contaminants and has a compound filter at the core.

It comes with a faucet and dedicated brass feed water adapter valve that doesn’t require any additional plumbing to get the system up and running. It has an auto shut-off design that’s based on a twisted movement so that you can install or remove the filter without the need to turn off the entire water supply.

When you’re ready to replace the cartridge, you don’t have to throw away the entire plastic housing. You can simply replace the core part of the filter after about 1,600 gallons of water. For the most part, one filter should last about eight months.

editor’s choice
Frizzlife Under Sink Water Filter
Frizzlife Under Sink Water Filter

It can eliminate up to 99.99 percent of the lead found in water, as well as a variety of different contaminants that nobody should ever have to drink.

View Deal

Pros:

  • Easy to install.
  • Auto shut-off design.
  • Simple filter replacement.
  • No plumbing required.

Cons:

  • Slow water flow.

2. APEC Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage

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APEC is no stranger to providing water purifying solution and this is one filtering system that will knock your socks off. Granted, it’s not the most affordable option out there but it is a system based on advanced components and filtering technology that will remove up to 99 percent of whatever contaminants might find their way into your water.

The cartridges are made with food-grade calcium so you can rest assured that the water they filter is absolutely safe for consumption. What these filters actually do is enrich the water with calcium minerals that improve its alkalinity.

This six-stage water filter is designed to work with water pressure that varies between 40 and 85 psi, which should cover the needs of plenty of households. Thanks to the installation videos, mounting this water filtering system should be a fairly easy process.

high-end option
APEC Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage
APEC Top Tier Alkaline Mineral pH+ 75 GPD 6-Stage

Supreme quality - designed, engineered and assembled in USA to guarantee water safety & your health.

View Deal

Pros:

  • Double carbon blocks.
  • 99% contaminant removal.
  • Calcium mineral cartridge.
  • Makes healthy alkaline water.

Cons:

  • Expensive

3. CuZn UC-200 Under Counter Water Filter

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Next up, we have the CuZn UC-200 water filter that stands out of the crows because it’s really easy to install. Since it doesn’t require a third faucet, you can simply connect this to your kitchen sink’s cold water line and you’re good to go. You will, however, need an adjustable wrench to tighten the connections.

This is also a three-stages type of filter that is equipped with membranes that will filter out even the smallest of sediments, leaving you and your family with fresh water the entire time. Thanks to its bacteriostatic filtration system, this product will not increase the chances of mold and bacteria formations.

The filter can purify up to 50,000 gallons of water or holds on for about five years before requiring a replacement. However, the manufacturer advises against buying this filter if you have hard water issues and recommends that you look into their reverse osmosis system which is more suitable for mineral removal.

customer’s choice
CuZn UC-200 Under Counter Water Filter
CuZn UC-200 Under Counter Water Filter

The CuZn UC-200 will not resolve issues caused by water being excessively hard (such as lime scale mineral deposits).

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Pros:

  • 5 years lifespan.
  • Easy to install.
  • Bacteriostatic filter.
  • Reduces organic and inorganic contaminants.

Cons:

  • Does not work with hard water.

4. APEC WFS-1000 Water Filter System

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One more APEC filtering system on the list? Yes, because these things are monsters in the positive way of the word. This is a three-stage water filtering system with three different reservoirs that house components meant to remove as many impurities from the water as they possibly can.

It features a super-capacity sediment filter that’s good for removing dust, particles, and rust. It also has a super-capacity carbon block that can remove chemicals, taste, and odors. The middle filter can remove chlorine, odors, taste, cloudiness, and VOCs. The system doesn’t interfere with your household’s regular water pressure and can still deliver between 20 and 85 psi.

best overall
APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System
APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System

Super capacity filters guaranteeing to remove chemicals, taste and odors. Feed Water Pressure: 20-85 psi

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Pros:

  • Super-capacity sediment filter.
  • Super-capacity carbon block.
  • Lead-free chrome faucet.
  • Improved alkalinity.

Cons:

  • Complaints about the dispenser.

5. iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System

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If you’re looking for something less expensive, but still reliable, you can count on iSpring to deliver just what you’re looking for. This water system has a filter for sediments that will clean the liquid of impurities. This filter is enhanced with carbon filtration, plus an additional layer of GAC filtration. That means that aside from debris, the filter can clear water of heavy metals, chemicals, and even bacteria.

This entire thing is based on a three-stage process and features tanks that are designed to be elegant and practice. The first stage housing is clear to make it easier for you to view the impurities, always being able to inspect the filter in a matter of seconds. The system can be installed without the help of a professional, and the materials in its composition are FDA regulated.

The filter doesn’t modify your water pressure to any significant extent as it is designed to provide a fast water flow rate. It can withstand a water pressure of up to 90 psi. Depending on the quality of your water, these filters can last between six months and a full year.

budget buy
iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System
iSpring US31 3-Stage Under Sink High Capacity Tankless Drinking Water Filtration System

Effectively removes lead, arsenic, heavy metals, VOCs and harmful chemicals cloudiness and colors and more

View Deal

Pros:

  • Clear housing for filter inspection.
  • Meets FDA standards.
  • Long lifespan.
  • Doesn’t decrease water pressure.
  • Easy to install.

Cons:

  • Complaints about wrench compatibility.

Bottom Line

It’s important that you find an under the sink water filtering system that can eliminate as many contaminants from the water as possible. Aside from making sure that the filters are efficient, you should also check to see what their average filtration lifespan is or how easy they are to mount.