Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

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
322 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.
322 Customer Reviews

Cut the tubes to lengths needed plus a bit extra

Would Recommend

Very easy to install. Conections worked well. Mike

May 10, 2026
Verified Purchaser
Was this Review Helpful ?

The best purifier out there

Would Recommend

Wonderful water purification system for my home. Love

May 7, 2026
Verified Purchaser
Was this Review Helpful ?

Stop drinking water right from the tap

Would Recommend

This was a very easy installation. Everything is color coded for what water line goes what port.

May 6, 2026
Verified Purchaser
Was this Review Helpful ?

Takes time to set up. Hire a plumber if needed.

Would Recommend

Works great. Even with hard water!

April 23, 2026
Verified Purchaser
Was this Review Helpful ?

As described

Would Recommend

Bought this to replace a similar Whirlpool unit. Installation was easy and instructions were detailed and complete.

April 17, 2026
Verified Purchaser
Was this Review Helpful ?

Spend your money on a better system

Would Not Recommend

After months of use i can honestly say this system is terrible. I now have to shut off my water to keep my system from draining constantly. My system pressure is at the recommended PSI and even the take it running it proper psi but still just keeps draining. Find a better system then this one. If you do contact whirlpool because you did register it, they just send you the same crap parts.

April 16, 2026
Was this Review Helpful ?
Response from WaterFiltrationExpert

Thank you for sharing your feedback, and I’m very sorry to hear about the issues you’ve experienced with your system. That’s certainly not the experi...

WaterFiltrationExpertApril 17, 2026

ecowatersys

Perfect small RO water system

Would Recommend

This RO system seems to work well and everything is included to connect under the sink if you have standard 3/8 compression water stops/supply lines. Minimal additional tools are needed, just a couple wrenches, drill and drill bits or step bit. Everything seemed to be of good quality and the various colored lines provided can be trimmed easily for a tidy installation. The water this system provides has near zero TDS or total dissolved solids (calcium, iron etc) and works very well.

March 17, 2026
Verified Purchaser
Was this Review Helpful ?

You must have strong hands to remove filters.

Would Not Recommend

Installation instructions are awful. They leave out parts of the instructions and then you have to call Whirlpool. No instruction about tanks pressure. Almost impossible to get filters out. Doesn’t store much water in tanks.

March 11, 2026
Verified PurchaserIncentivized
Was this Review Helpful ?
Response from WaterFiltrationExpert

Hello, thank you for your review. We’re sorry to hear about your experience with the instructions and installation, we truly appreciate your feedback...

WaterFiltrationExpertMarch 27, 2026

ecowatersys

Be careful of open boxes

Would Not Recommend

Unfortunately, it leaked at several places and did not produce the correct amount of product water. This was the fourth of the similar product purchased over the past 30 years. Previous systems work flawlessly this one was an open box and was probably returned to the store for similar problems. In the end, that’s what I did and bought a similar product online, which works perfectly. It’s the same system just under a different brand name. I like the new filter and I’d like the ones before this, b...

March 7, 2026
Verified PurchaserIncentivized
Was this Review Helpful ?
Response from WaterFiltrationExpert

Thank you for taking the time to share your feedback, and we’re sorry to hear about the issues you experienced with the system you received. Our team...

WaterFiltrationExpertMarch 10, 2026

ecowatersys

Reliable and trustworthy

Would Recommend

Peace of Mind that the quality of water is safe. Just because you have a well or on county water doesn't mean your water is clean for drinking without boiling. Saves your appliances that require water to avoid scaling too!

March 5, 2026
Verified PurchaserIncentivized
Was this Review Helpful ?

Very good value, Store availability was a comfort

Ease of setup, Instructions were clear and easy to follow.

March 2, 2026
Verified PurchaserIncentivized
Was this Review Helpful ?

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
Was this Review Helpful ?