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Enjoy refreshing water with these easy-to-install filters.

A water filter for the GE Single Stage Filtration System after installation

Credit:Better Homes & Gardens

Poczatek says under-sink water filters provide a final barrier of protection from contaminants in the water.

Then, we assessed the installation process, ease of use, and performance, including taste.

For more information on how we tested under-sink water filters, check outour testing processbelow.

Brondell Coral Three-Stage Under Sink Water Filtration System

PHOTO: The Home Depot

Carbon filtersare also commonly used in under-sink water filters.

Notably, carbon works to remove bad tastes and odors.

There was an immediate and significant improvement after installation: the tap waters normallychlorinated smelland oily taste were gone.

The pieces of the Brondell Coral Three-Stage Under Sink Water Filtration System

PHOTO: Better Homes & Gardens

After filtration, they didnt notice any major changes in look, taste, or smell.

The carbon filter is also made with coconut, which may pose an allergy risk to some.

Our tested noted the resulting taste was similar to distilled water.

The Brondell Coral Three-Stage Under Sink Water Filtration System after installation

Others in the household who tasted the unfiltered and filtered water did not notice a change.

NSF/ANSI 42certifies anaesthetic-relatedcontaminant reduction such as the taste and odor of chlorine and iron.

There are more than 50 possible contaminants addressed underNSF/ANSI 53, which certifieshealth-relatedcontaminant reduction like VOCs and lead.

The Brondell Coral Three-Stage Under Sink Water Filtration System under a sink

Reduction of 15 emerging compounds and incidental contaminants, like pesticides or prescription drugs, can be certified underNSF/ANSI401.

In addition, this is acertified lead-freeplumbing product, meeting the requirements of both NSF/ANSI 372 and the U.S.

Safe Drinking Water Act.

A person assembles the Brondell Coral Three-Stage Under Sink Water Filtration System

Waterdrop:The IAPMO has certifiedthis Waterdrop modelfor aesthetic chlorine, taste, and odor under NSF/ANSI 42.

This product is also certified lead-free and meets both NSF/ANSI 372 and requirements in the U.S.

Safe Drinking Water Act.

Water runs from a spout connected to the Brondell Coral Three-Stage Under Sink Water Filtration System

It also lowers turbidity for clearer water.

In addition, it tackles sand, rust, and other sediments that are commonly found in well water.

GE:This single-stage filtration systemtargets aesthetic, health, and emerging contaminants for safer and better tasting water.

Water filtered by the Brondell Coral Three-Stage Under Sink Water Filtration System is compared to unfiltered water

It reduces aesthetic chlorine taste and odor, removes sediments, and addresses turbidity.

Kitchen sinks typically have a flow ratebetween 2.2 and 1.5 gpm,the lower rates being more water-efficient models.

Brondell:This faucet and filter combocites a flow rate of 0.5 GPM.

The pieces of the Brondell Coral Three-Stage Under Sink Water Filtration System

During our testing, we didnt note significant changes to water flow rate while testing.

Waterdrop:The highest flow rate on our list,this filtercomes in at 0.75 GPM.

Our tester appreciated that there was no noticeabledifference in water pressuresince installing the under-sink water filter.

The Brondell Coral Three-Stage Under Sink Water Filtration System after installation

GE:This filter with control valvereports a 0.6 GPM flow rate.

Brondell:Each of the three filters inthis systemhas a 12-month life or a 600-gallon capacity.

The Brondell faucet has an LED indicator light to alert you when the filter is spent.

The Brondell Coral Three-Stage Under Sink Water Filtration System under a sink

Only two tubing connections were required.

However, the instructions were clear and the manufacturers installation video aided at every step.

The slim, single-lever faucet didnt crowd the sink or countertop after installation.

A person assembles the Brondell Coral Three-Stage Under Sink Water Filtration System

The chrome control knob is asymmetrically designed to help intuitively guide users for the on-off position.

Pointing toward the sink meant the filter was on, pointing away meant it was off.

The light around the base indicated when the filter needed to be changed.

Water runs from a spout connected to the Brondell Coral Three-Stage Under Sink Water Filtration System

Our tester did note that the control valve felt lightweight and wondered about the products durability over time.

All the filter required was a twist to install or remove, so replacement is quick and easy.

Our Testing Process

For this test, we wanted to compare popular brands in water filtration.

Water filtered by the Brondell Coral Three-Stage Under Sink Water Filtration System is compared to unfiltered water

We evaluated each filter on installation, performance, and ease of use.

Plus, we didnt find certifications to confirm contaminant removal claims.

Your Questions, Answered

What are the benefits of an under-sink water filter?

Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

PHOTO: Amazon

Under-sink water filters offer the convenience of point-of-use filtration but are hidden away under countertops and behind cabinet doors.

Are under-sink water filters better than water filter pitchers?

One is not necessarily better than the other; they are just different, Poczatek says.

The Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System under a sink

PHOTO: Better Homes & Gardens

What Is BHG Recommends?

Next to all of the products on this list, you may have noticed ourBHG Recommends seal of approval.

In these cases, we use the same testing criteria we use to test the purchased products.

The pieces of the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

https://www.ansi.org/

https://www.nsf.org/knowledge-library/nsf-ansi-42-53-and-401-filtration-systems-standards

https://www.nsf.org/knowledge-library/nsf-ansi-can-372-technical-requirements

https://www.epa.gov/sdwa/overview-safe-drinking-water-act

https://www.brondell.com/content/UC300_Coral_PDS.pdf

https://www.epa.gov/system/files/documents/2023-08/ws-homes-TRM-5-KitchenFaucetsTechSheet_0.pdf

A person installs the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

The Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System after installation

The Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System inside a sink cabinet

Water streams from a spout connected to the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

The Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System under a sink

The pieces of the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

A person installs the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

The Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System after installation

The Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System inside a sink cabinet

Water streams from a spout connected to the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

GE Single Stage Filtration System

PHOTO: The Home Depot

The GE Single Stage Filtration System inside an under-sink cabinet

PHOTO: Better Homes & Gardens

A water filter for the GE Single Stage Filtration System after installation

Water streams from a spout connected to the GE Single Stage Filtration System

A glass of unfiltered water is compared to a glass of water filtered by the GE Single Stage Filtration System

The GE Single Stage Filtration System inside an under-sink cabinet

A water filter for the GE Single Stage Filtration System after installation

Water streams from a spout connected to the GE Single Stage Filtration System

A glass of unfiltered water is compared to a glass of water filtered by the GE Single Stage Filtration System

A glass of unfiltered water is compared to a glass of water filtered by the GE Single Stage Filtration System

Credit:Better Homes & Gardens

Water streams from a spout connected to the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

Credit:Better Homes & Gardens

A person installs the Waterdrop 17UB-UF 0.01 μm Ultra Filtration Under Sink Water Filter System

Credit:Better Homes & Gardens

A person assembles the Brondell Coral Three-Stage Under Sink Water Filtration System

Credit:Better Homes & Gardens