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Filtrete Maximum Under Sink Water Filtration System 3US-MAX-S01

4.6 4.6 out of 5 stars 2,897 ratings

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Filtration System
Item Weight 2.42 Pounds
External Testing Certification ANSI, NSF
Brand Filtrete

About this item

  • MAXIMUM LEVEL FILTRATION - This system reduces 99% lead, 99% microbial cysts, 97% chlorine taste and odor, plus 0.5 microns of sand, sediment, rust, and soil
  • QUICK INSTALLATION - This system installs in less than 30 minutes
  • USES EXISTING FAUCET - Filter water right at the sink without having to install an entirely separate faucet
  • PROVIDES HIGH FLOW RATE - This system maintains a high flow rate of 1.5 gallons per minute
  • SIX MONTH FILTER LIFE - Use each filters for up to six months
See more product details

Customer ratings by feature

Easy to install
4.5 4.5
Flavor
4.5 4.5
Value for money
4.1 4.1

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Filtrete Maximum Under Sink Water Filtration System 3US-MAX-S01
Filtrete Maximum Under Sink Water Filtration System 3US-MAX-S01
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Price$37.99$33.99-10% $122.91
List:$136.80
-13% $146.99
List:$169.63
$59.59
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it Mar 22 - 26
Customer Ratings
Easy to install
4.5
4.9
4.9
4.5
4.2
Flavor
4.5
4.8
4.6
4.5
3.6
Value for money
4.1
4.8
4.5
4.2
4.0
Sold By
WaterdropDirect
Water Purity Expert
Amazon.com
Amazon.com
DiscountFilterStore
material
Activated Carbon,Lead-Free & BPA Free and Food-Grade Material
Activated Carbon,Lead-Free & BPA Free and Food-Grade Material
carbon
Carbon Steel
duration
6
6
6
6
product benefit
Reduces Odor, Taste and Chlorine
Reduces Odor, Taste and Chlorine
Reduces Chloramine
Reduces VOCs
certification
ANSI, NSF
WQA
IAPMO
NSF
NSF
NSF
model number
3US-MAX-S01
WD-W01
AQU-WF01
70020022272
70020005888
3US-PF01
weight
2.42 pounds
3.81 pounds
2.87 pounds
3.86 pounds

From the brand


From the manufacturer

Filtrete Water Banner

better quality water

under sink water filter

appliance protection

Improve the taste and quality of the water in your home from a trusted name in water filtration.

Tested and Certified by NSF International, one of the world’s most respected independent certification organizations, to NSF/ANSI 42 and 53.

Find the level of filtration that works for your family and reduce chlorine taste and odor, sand, sediment, rust, silt and more.

Filtrete Maximum Under Sink Water Filtration System 3USMAX-S01

Filtrete Maximum Under Sink Water Filtration System 3USMAX-S01

Treat your family to Filtrete Maximum level filtration. This system reduces 99% lead, 99.95% microbial cysts, 97% chlorine taste and odor, select VOCs, select pharmaceuticals, plus 0.5 microns of sand, sediment, rust and soil that may be in your water. It allows you to use your existing faucet and features quick installation - less than 30 minutes. The system provides a high water flow rate of 1.5 gallons per minute and is NSF Standard 42, 53 and 401 certified.

Typical System Installation

water filter installation
3US-MAX-S01 3US-PS01 3US-AS01 3WH-STD-S01
3US-MAX-S01 3US-PS01 3US-AS01 3WH-STD-S01
Customer Reviews
4.6 out of 5 stars
2,897
4.7 out of 5 stars
6,057
4.6 out of 5 stars
649
4.6 out of 5 stars
620
Location Under Sink, Full Flow Under Sink, Full Flow Under Sink, Full Flow Point of Entry
Replacement Cartridge 3US-MAX-F01 3US-PF01 3US-AF01 3WH-STDCW-F02
Filter Life Up to 6 months Up to 6 months Up to 6 months Up to 6 months
Micron Rating 0.5 0.5 5 5
Reduces Sediment, Soil and Sand
Reduces Chlorine Taste and Odor
Reduces Rust
Reduces Microbial Cysts
Reduces Lead
Reduces Select VOCs and Pharmaceuticals

Product information

Technical Details

Additional Information

Warranty & Support

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Product guides and documents

Product Description

The Filtrete Maximum Under Sink Water Filtration System is easy to install and maintain. It's an under sink water filtration system that connects to the kitchen or bath faucet.

Customer reviews

4.6 out of 5 stars
4.6 out of 5
2,897 global ratings

Customers say

Customers like the value, ease of installation, taste and quality of the potable water filter. They mention that it's affordable, easy to add to the sink and that it removes the chlorine taste from the water. They are also satisfied with the quality and filter. However, some customers have reported a slight reduction in water pressure. Customers also have different opinions on water quality, and flow.

AI-generated from the text of customer reviews

179 customers mention170 positive9 negative

Customers find the installation process of the potable water filter to be easy. They mention that the instructions are well-written, and the filter is easy to add to the sink water. Some say that the filter has saved them a lot of time in the kitchen and that it is more convenient than hauling around water.

"...It has saved me a lot of time in the kitchen, and I feel better than all my food only comes in contact with the lead-free water...." Read more

"Extremely easy to install, makes the water from my sink taste better, and overall a must have for apartment living" Read more

"It was easy to install , start to finish about 20 minutes...." Read more

"...It was easy to install. Came with everything needed. It dripped at first then I realized I didn’t have one of the hoses pressed in all the way...." Read more

135 customers mention118 positive17 negative

Customers like the taste of the water filter. They mention that it produces outstanding tasting water and removes the chlorine taste from their water.

"...It is clear and tastes good. And when you leave water sitting around for hours in a glass it still tastes good when it is warm...." Read more

"Extremely easy to install, makes the water from my sink taste better, and overall a must have for apartment living" Read more

"...They are easy to replace and the water tastes much better." Read more

"...I like how this unit stays under the sink, out of view. The water tastes great and from what I'm seeing the replacement cartridges are much more..." Read more

116 customers mention97 positive19 negative

Customers like the quality of the water filter. They say it does the job, works perfect under their kitchen sink, and is easy to install. Customers are impressed with the top notch filtration, saying that the water quality is perfect and has no taste issues.

"I have been using this brand for years……..Works fine and it’s very easy to change the filter bottle...." Read more

"...The Filtrete filter itself does a good job, very happy with its performance...." Read more

"...After a couple months of using it I’m happy with it. It’s pretty good without going the expense or complexity of a full reverse osmosis system." Read more

"Good and Easy" Read more

95 customers mention74 positive21 negative

Customers like the filter. They say it filters just as well as the OE type, and the flow rate does not decrease. They also appreciate the convenience of changing the filter and say it provides some protection against other contaminants. They mention that it is easy to install and use, and provides some resistance to other contaminants such as chlorine.

"This filter is a bit tricky to install, but not terrible. Changing the filters is a breeze and that's a huge plus...." Read more

"...the chlorine taste from our water and also provides some protection against other contaminants. Easy to install under sink...." Read more

"Filter works as described. No odor or taste." Read more

"...Also, these tiny in fridge filters don't last long and only have basic filtration...." Read more

69 customers mention51 positive18 negative

Customers like the value of the water filter. They mention that it's affordable, the refills are affordable, and the replacement filters are inexpensive. This helps them save money in the long run.

"...tastes great and from what I'm seeing the replacement cartridges are much more reasonably priced compared to the Dupont cartridges." Read more

"Serious though it is worth the extra few dollars. I've had the maximum filters since I ordered the system and had it put in a couple years ago...." Read more

"...Little pricey for what it is………..but I know it works." Read more

"...tastes and unseen microbes removed, this is an easy and less expensive solution to the whole house filtration...." Read more

72 customers mention43 positive29 negative

Customers are mixed about the water quality of the filter. Some mention that the system is perfect, the water is clear, and fantastic. However, others say that the supply hose popped off, spewing water everywhere, and the water still is not great. The filter does not remove pollution from the water, but adds it instead. It is terrible for spray-cleaning anything with the sprayer with cold water.

"...The water: I found this does a very good job filtering our water. It is clear and tastes good...." Read more

"...Water damage can be tremendously costly to repair so I think 3m should improve this issue...." Read more

"...They've always improved the water quality greatly and I've never had a problem until now...." Read more

"...The filtration system removes about 99% of lead and 97% of chlorine...." Read more

54 customers mention21 positive33 negative

Customers are mixed about the flow of the water filter. Some mention that the flow rate is good, while others say that it got slow enough within 2 months. The pressure on the faucet is noticeably slower, and it takes forever to fill a glass. Overall, the product has mixed reviews and opinions are mixed.

"...So what's the downside? Flow rate. Definitely lower. Box claims 1.5 gpm, like others have posted, likely optimistic...." Read more

"...It still comes out fast enough, it's not a deal breaker difference because we only use the cold water for drinking anyway, and it has no effect on..." Read more

"...It couldn't have been simpler to install.Water flow is somewhat restricted from what it was, but it's honestly barely noticeable...." Read more

"...This system barely slows the water flow down much. About 1 gallon per minute output, maybe more. I haven't felt the need to time it exactly...." Read more

43 customers mention9 positive34 negative

Customers are not satisfied with the water pressure of the water filter. They mention that it reduces the water flow, resulting in a slight reduction in water pressure. Some customers also mention that the filter can't handle the unbalanced pressure and can crack.

"...(poor) design of the filter is such that it can't handle this unbalanced pressure and can crack...." Read more

"...My normal water pressure is awesome, I would estimate I lost about 60% of my pressure, I will accept the low flow to have better water after all I..." Read more

"...It will cut your water pressure quite a bit, mine has about half the pressure I started with...." Read more

"...Pressure does seem better than the one I replaced.As for how well it works, our tap water is virtually tasteless so I really can't tell...." Read more

The Best For The Price!
5 Stars
The Best For The Price!
If you live in the Florida and need a good filter, I definitely recommend this one! Florida generally has really good tap water but my only gripe is that the chlorine content is just a tad bit high for my taste. This filter is great at eliminating that taste altogether. I had family visiting from Brazil and they thought I had a pricey reverse-osmosis system installed! The quarter-turn mount makes it super easy to change out. One filter easily lasts my family of 3 about 6-9 months. Will definitely purchase one for the office too!
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Top reviews from the United States

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Top reviews from other countries

C. Y. Chu
5.0 out of 5 stars Do the job
Reviewed in Canada on September 4, 2022
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5.0 out of 5 stars Want better drinking water? 3M Filtrete is the excellent inexpensive option.
Reviewed in Canada on August 14, 2020
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Wayne Ho
5.0 out of 5 stars 3rd order. Well............
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lance
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