Waterdrop 15UA Under-Sink Water Filter Review 2023


This is our review of the Waterdrop 15UA Under-Sink Water Filter System.

Our team has several years of experience researching the best water filtration systems available in the market. So we put this accumulated knowledge into practice and researched the best under-sink water filter brands to save your time. In this article, we will give an in-depth look at the Waterdrop 15UA Under-Sink Water Filter to help you decide if this product is the right choice for you and your family.

The Waterdrop 15UA Under Sink Water Filter is a good and affordable choice for a simple under-sink water filter system because this NSF-certified product removes the common contaminants that you will find in city water, lasts longer than most of the competition, offers a nice water flow that allows you to fill a cup of water in a couple of seconds, and can be installed in less than 5 minutes.

In this comprehensive Waterdrop 15UA Under-Sink Water Filter review, we will analyze the filtration capabilities, the system capacity & longevity, its flow rate, the installation & maintenance process, and discuss customer reviews and potential alternatives for this under-sink water filter system.

Let’s get started!

Waterdrop 15UA Under-Sink Water Filter Overview

The Waterdrop 15UA Under-Sink Water Filter is a device that is installed directly on the cold water line filtering all the water of s specific kitchen faucet (or other division where you decide to install it) so it is known as a point-of-use (POU) system.

Using multiple media filters, it targets different types of contaminants, ensuring that your water is clean of some of the harmful contaminants found in city water like chlorine, VOCs, chemicals, and heavy metals.

Some features that differentiate the Waterdrop 15UA Under-Sink Water Filter from the competition are the extended longevity as it can last up to 2 years, and the fact that it is NSF certified which not all the manufacturers can claim to be.

Last but not least, the installation process is quite simple as it can be done in around 3 minutes, and the filters can be changed in a few seconds using a twist on & off technology.

The  Waterdrop 15UA can be used not only at home, you can also buy it to use in an RV or even in an office, as it has a compact design and it’s easy and quick to install.

Waterdrop 15UA Under-Sink Water Filter Filtration Capabilities

The Waterdrop 15UA Under-Sink Water Filter can remove common harmful contaminants found in municipal water such as sediments, chlorine, chloramines, heavy metals, chemicals, cysts, VOCs, bad taste & odors, and much more.

Using a filtration system with an accuracy of 0.5-micron and combining multiple media filters, there is a huge range of contaminants that this under-sink water filter can reduce, without removing healthy minerals like calcium, potassium, and magnesium.

The Waterdrop 15UA Under-Sink Water Filter is composed of the following media filters:

  • Polyester Membrane, responsible for removing larger particles like sediments, rust, dust, sand, and others
  • Activated Carbon Block, which removes chlorine, chemicals, VOCs, bad taste & odors, etc.
  • Kinetic Degradation Fluxion (KDF) Media, which removes heavy metals (like lead, mercury, and arsenic), and prevents bacteria growth

And the Waterdrop WD-15UA is NSF/ANSI certified, having NSF 42 and NSF 372 certifications, ensuring that this device was properly tested to meet the quality standards to remove the harmful contaminants like chlorine as it advertises, and that is made of BPA and lead-free materials.

Note that like most under-sink water filters, this product is not suited for well water but only for municipal water, as the larger particles found in well water can clog the system quickly reducing its effectiveness. In this situation, it is better to use a whole house water filter to pre-filter the water that enters the entire household before using an under-sink water filter.

Waterdrop 15UA Under-Sink Water Filter Capacity & Longevity

The WD-15UA Under-Sink Water Filter can filter up to 16.000 gallons of water, which should last for around 2 years.

This is pretty amazing longevity compared with the competition, and only another product on our top 10 of the best under-sink water filters can beat it.

Waterdrop 15UA Under-Sink Water Filter Flow Rate

The Waterdrop 15UA Under-Sink Water Filter has a flow rate of 0.75 GPM (gallons per minute), which is enough to ensure that you won’t have to wait long to have filtered water when needed.

With this water flow rate, you will be able to fill a glass of water in 2 seconds, so no need to worry about the water pressure after buying this under-sink water filter.

Waterdrop 15UA Under-Sink Water Filter Installation & Maintenance

The installation of the Waterdrop 15UA under-sink water filter couldn’t be easier, as this product comes with all the necessary tools and adapters for the installation, and contains push-to-connect fittings to ensure that you can complete the installation in a few minutes without hassles.

You can watch a video of the Waterdrop 15UA under-sink water filter below:

Maintaining this system is also really easy, as you will only have to replace the filter cartridge every couple of years, and the system is equipped with a twist-on and off feature to ensure that the filter replacement can be done in a few seconds.


Waterdrop 15UA Under-Sink Water Filter Reviews

On Amazon’s website, the Waterdrop 15UA Under-Sink Water Filter is considered an “Amazon’s Choice” product in its category. This product has an average rating of 4.7 stars with more than 3.000 reviews.

This is clearly an under-sink water filter that customers recommend, as we can check on the detailed reviews and by considering the fact that more than 90% of the reviews are 4 or 5-stars reviews.

Reading the detailed reviews we noticed that most of the customers are happy with the water quality and the simplicity of the installation process, but a few customers mentioned that it didn’t last as long as expected.

Waterdrop 15UA Under-Sink Water Filter Alternatives

If the Waterdrop 15UA under-sink water filter system isn’t the ideal solution for your household, there are other alternatives that you can consider.

Waterdrop G3 Reverse Osmosis Under-Sink Water Filter

A great alternative is the Waterdrop G3 Reverse Osmosis Under-Sink Water Filter system.

This is one of the best Reverse Osmosis systems on the market, and it is installed under the sink. This tankless NSF-certified system removes up to 99% of the water contaminants and comes packed with several smart features like a TDS meter or a filter life indicator in-built on a designer faucet.

Note: You can use our code WFPG3 on Waterdrop to save $55

Aquasana AQ-5300 Under-Sink Water Filter

If you prefer a conventional under-sink water filter, the Aquasana AQ-5300 is a good option.

This device comes with several NSF certifications, reduces up to 99% of 77 common water contaminants through a 3-stage filtration process, and provides good water flow, and an easy installation.

CuZn UC-200 Under-Sink Water Filter

Another nice alternative is the CuZn UC-200 under-sink water filter.

This simple under sink water filter has an amazing longevity of 5 years or 50.000 gallons of filtered water, can be installed in 5 minutes, and removes most of the contaminants found in municipal water through a 3-stage filtration system.

Our Verdict

We believe that the Waterdrop 15UA Under-Sink Water Filter is a great choice if you are looking for an under-sink water filter system, and is part of our top 10 list of Best Under Sink Water Filters.

This under-sink water filter removes most of the common contaminants found in municipal water, it’s NSF certified, has great longevity of around 2 years before needing to replace the filter, offers a nice flow rate, and can be installed in a few minutes.

Promo: Use our code WFP10 for a 10% discount on any product on the Waterdrop website