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Triple-stage Carbon block Reverse Osmosis Filtration Under Sink Water Filtration System with

Ratings & Reviews for Whirlpool Triple-stage Carbon block Reverse Osmosis Filtration Under Sink Water Filtration System with

3.8
322
Review
 3.8 out of 5
323 Reviews


70% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The filtration system provides high-quality, great-tasting water for many users. Most customers are satisfied with its performance and find it easy to install and maintain. The water quality is often described as better than bottled water, and the system is compact. However, some users have experienced issues such as leaks, cracks in the housing, and problems with the faucet, which can be made of cheap, plastic materials that may break or become loose over time. The flow rate may also decrease or the tank may need replacement after a few years of use.

Customer review summary generated by AI, including incentivized reviews.
323 Customer Reviews

High quality RO system for a good price

Would Recommend

Easy to install and works great! Water is fresh and clear. Took about an hour to install

March 1, 2026
Verified PurchaserIncentivized
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Well Worth the Money

Would Recommend

The convenience of having clean water from your tap far outweighs having to buy gallons of water, not to mention the environmental benefits.

March 1, 2026
Verified PurchaserIncentivized
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Must have DIY Skills

Would Recommend

Very vague installation instructions but overall works as intended.

February 25, 2026
Verified PurchaserIncentivized
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DO NOT PURCHASE, DO NOT WASTE YOUR HARD EARNED $$$

garbage, trash, not serviceable, FLIMSY , BRITTLE CONSTRUCTION , Guaranteed to be a complete disaster.

February 22, 2026

From Whirlpoolwatersolutions.com

Better than plastic bottles

Would Recommend

This is my second time using this filter, it is great.

February 7, 2026
Verified Purchaser
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Great under sink filtration system

Would Recommend

This was a super easy system to install and works great, there were only 2 things I would improve on, First, I wish the holding tank was a little bigger and second, I wish they had told you to install the red line to the faucet before inserting the lines through the hole in the sink, rather than after. Other than those 2 things I would have given it 5 stars.

February 7, 2026
Verified PurchaserIncentivized
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Manifold didn’t work

Would Not Recommend

It didn’t work. Manifold defective

February 7, 2026
Verified Purchaser
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Response from WaterFiltrationExpert

We’re sorry to hear that the manifold did not work properly and understand how frustrating that must be.

We would appreciate the opportuni...

WaterFiltrationExpertFebruary 11, 2026

ecowatersys

Not the best quality..

Would Not Recommend

It leaks. We can't get the fitting to seal properly. Going to have to return it, after drilling holes and installing it in my home...

January 30, 2026
Verified Purchaser
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Response from WaterFiltrationExpert

Thank you for sharing your feedback. We’re sorry to hear about the installation issue and understand how frustrating leaks can be, especially after i...

WaterFiltrationExpertFebruary 5, 2026

ecowatersys

Would Recommend

My city water supply has 292 TDS the filter lowered it to 2 TDS !

January 29, 2026
Verified Purchaser
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This is a good investment

Would Recommend

It’sa product I’ve been wanting for my home. It’s good for our health.

January 24, 2026
Verified Purchaser
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Under sink RO

Would Recommend

It wasn't too hard to install but has very little pressure

January 23, 2026
Verified Purchaser
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Response from WaterFiltrationExpert

Hello Billy, thank you for your review. If you are experiencing any issues with the system, please contact our Customer Service team at 1-866-986-322...

WaterFiltrationExpertJanuary 29, 2026

ecowatersys

review of reverse osmosis filter just pick them up

Would Recommend

i modified this system to filter my refrigerator water and ice dispenser from the basement beneath. so far i’m happy with the results

January 18, 2026

From Whirlpoolwatersolutions.com

Good water filter

Would Recommend

I had model WHER25 for the past four years Just bought WHAROS5 The old model was good This model is even better

January 5, 2026

From Whirlpoolwatersolutions.com

Some good, a lot bad.

Seems to do a good job. The filters are expensive! Change your photo. Very misleading! The faucet does NOT come with timer. I had to replace your old style(upright) because of crack in housing. The new system(on side) has a new style final filter that causes the output to be slower than molasses! Do not like that at all.

December 22, 2025

From Whirlpoolwatersolutions.com

Would Not Recommend

Not recommended. Very poor system. Water keeps dripping. Very low pressure, small storage tank.

December 10, 2025

From Whirlpoolwatersolutions.com

Response from customer service

Thank you for taking the time to share your feedback. We’re sorry to hear about the issues you’re experiencing with your system, including the drippin...

customer serviceDecember 10, 2025

Ph levels must be checked!

Would Recommend

I did not realize that PH levels change dramatically when this is applied to a softened filtered water from a well. So be careful if that is a factor for you as is will change the PH water level somewhat.

November 21, 2025
Verified Purchaser
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It was great, new filters rendered it useless

This system was in my house when I bought it, I was very happy with the quality of the water, really had no complaints until I bought new filters and membrane. Now I get very little water out of it, it still tastes fine but I only get about a quart at a time and it comes out vwry slowly. The pressure in the rank is fine. I went through all the troubleshooting and have found no remedy. Time to find a different system.

November 16, 2025

From Whirlpoolwatersolutions.com

Response from customer service

Thank you for taking the time to share your experience. We’re sorry to hear that you’re having trouble with your system after replacing the filters an...

customer serviceNovember 19, 2025