9 Best Under Sink Water Filter For 2020

#1 Recommended


Woder 10K-Gen3

Our No.1 recommended for under sink water filter.

Budget Pick


CuZn UC-200

Value for money among all under sink water filter.

Certified Pick


EPIC Smart Shield

ANSI and NSF Certified under sink water filter.

Water contamination is a rising concern in parts of the country. The infamous Flint contamination issue that leaving thousands of homes affected by lead contamination is one example.

A great water filtration system will get rid of the contaminants on your drinking water no matter it is organic or inorganic.

You probably don’t want a bulky water filter sticking out in and destroy the appearance of the kitchen, don’t you?

In that case, you might consider having an under sink water filtration system that completely hidden from the view.

DISCLOSURE: We may receive commissions when you click our links and make purchases. However, this does not impact our reviews and comparisons. We try our best to keep things fair and balanced, in order to help you make the best choice for you.

Product Comparison

To make this easier, we have put in this buying guide to compare the features of 9 under sink filters that are highly sought by customers.

Woder 10K Gen3


Best Under Sink Water Filter

+ Eliminate up to 99.99% of lead, cholrine, VOC and other contaminants.
+ Flow Rate: 2 GPM
+ Cost: $$, $33 yearly
+ Lifespan: 10000 Gallons or 3 years.

CuZn UC-200


Best Budget Under Sink Filter

+ 3 stage filtration that removes chlorine, heavy metals, sediments, odor and smell.
+ Flow Rate: 2 GPM
+ Cost: $$, $24 yearly
+ Lifespan: 50000 Gallons or 5 years.

EPIC Smart Shield


Certified Under Sink Water Filter

+ NSF Certified to eliminate up to 99% of lead, chlorine, VOC and other organic and inorganic contaminants.
+ Flow Rate: 1.25 GPM
+ Cost: $$, $130 yearly
+ Lifespan: up to 12 months.

15% off when you buy from this link

3M Filtrete


High Flow Rate Under Sink Filter

+ 0.5 Microns of filter that removes up to 99% of lead, chlorine, odor, taste and microbial cysts.
+ Flow Rate: 2.25 GPM
+ Cost: $, $65 yearly
+ Lifespan: 2000 gallos or 6 Months

Home Master TMHP


Under Sink Well Water Filter

+ Reverse osmosis filter that removes 99.99% of most contaminants with UV sterilization features.
+ Flow Rate: 75 gallons per day
+ Cost: $$$$, $150 yearly
+ Lifespan: up to 12 months

Aquasana AQ-5300


Multi Stage Under Sink Water Filter

+ Effective in removing 97% of chlorine and chloramines. It reduces heavy metals and organic chemicals too. 
+ Flow Rate: 0.75 gallons per minute
+ Cost: $$, $130 yearly
+ Lifespan: 800 gallons or 6 months.



Entry Model Reverse Osmosis Filter

+ Eliminates up to 99% of contaminants, including arsenic, chlorine, lead, and heavy metals. 
+ Flow Rate: 50 gallons per day
+ Cost: $$, $50 yearly
+ Lifespan: up to 12 months

Home Master TMAFC


Best Reverse Osmosis Under Sink Filter

+ Filters 99% of chlorine, chemicals, chloramines, heavy metals, dissolved solids, and pharmaceuticals
+ Flow Rate: 50 gallons per day
+ Cost: $$$, $87 yearly
+ Lifespan: up to 12 months



Best Alkaline Under Sink Filter

+ Eliminates 99% of water pollutants including arsenic, lead, fluoride, chlorine and 1000+ other contaminant.
+ Flow Rate: 90 gallons per day
+ Cost: $$, $85 yearly
+ Lifespan: up to 12 months

*Production rate based on gallons per day (GPD) and gallons per minute (GPM).

Generally, all the systems suggested above received a high rating from its customers. But each of them has its own strengths and weaknesses.

It’s all depends on several factors such as tap water conditions, budget, production rate to determine which system is suitable for your home.

Under Sink Water Filter Reviews

Woder 10K Gen3 - Best Under Sink Water Filter

Woder is a well-known water treatment brand for its durability and affordability. This is why we rank the 10K-Gen3 as the top rated under the counter system.

Suits City Water: Woder claims to have certified in removing 99% of chlorine and lead while reducing other contaminants such as heavy metals, VOC and etc. 

Healthy Minerals Remain: Unlike reverse osmosis filter, it selectively removes contaminants and retained healthy minerals in the filtered water. Minerals such as calcium and magnesium will not be filtered.

Easy Installation: It comes with a 3/8” connector which is easily connected to the water valves of most of the US household. It should be installed in the cold water line.

If you are using a 1/2″ pipe, you will need an adapter to fit into the system.

The system is fully made in the US that comes with a “You’ll Love It” guarantee which allowed you to return if the product is not satisfactory.

Maintenance: Woder claims that a single filter can create up to 10,000 gallons of fresh drinking water. For a medium household of 4, you can probably install and forget about it for 3 years.

Annual Maintenance Cost: $33

Customer Rating – 4.5 | Our Rating – 4.8

To learn more, visit Woder 10K review page.