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

4.6 4.6 out of 5 stars 2,898 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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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
2,898
4.7 out of 5 stars
6,061
4.6 out of 5 stars
649
4.6 out of 5 stars
622
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.

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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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Details
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Price$33.99-10% $122.91
List:$136.80
-13% $146.99
List:$169.63
-18% $80.15
List:$98.30
$68.83
Delivery
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Customer Ratings
Easy to install
4.5
4.9
4.5
4.7
4.1
Flavor
4.5
4.6
4.5
4.5
3.6
Value for money
4.1
4.5
4.2
4.2
4.0
Sold By
Water Purity Expert
Amazon.com
Amazon.com
Amazon.com
PowerHouse Games
material
Activated Carbon,Lead-Free & BPA Free and Food-Grade Material
carbon
Carbon Steel
Plastic
duration
6
6
6
6
product benefit
Reduces Odor, Taste and Chlorine
Reduces Chloramine
Reduces VOCs
Reduces VOCs
certification
ANSI, NSF
IAPMO
NSF
NSF
NSF
NSF
model number
3US-MAX-S01
AQU-WF01
70020022272
70020005888
C-COMPLETE
3US-PF01
weight
2.42 pounds
3.81 pounds
2.87 pounds
3.86 pounds
0.88 pounds

Customer reviews

4.6 out of 5 stars
4.6 out of 5
2,898 global ratings

Customers say

Customers like the performance, ease of installation, taste and quality of the potable water filter. For example, they mention that it works well, the instructions are well laid out and that it makes the water taste and smell better. That said, opinions are mixed on flow, value, quality and water quality.

AI-generated from the text of customer reviews

182 customers mention170 positive12 negative

Customers find the installation of the potable water filter to be easy. They mention that the instructions are well laid out and the unit mounts fairly easily. Customers also say that the filter is very easy to replace with no tools required. They also say it saves a lot of hassle not having to lug containers.

"...The cold water faucet: This is much more convenient than the pitcher we used for years. I used to fill and wait for water. Now I don't have to wait...." 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

134 customers mention117 positive17 negative

Customers like the taste of the water filter. They say it does an excellent job making the water taste and smell better.

"...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

104 customers mention85 positive19 negative

Customers like the quality of the water filter. They say it does a decent job of filtering, it filters enough out that the water doesn't taste, and it filters as advertised. Some customers also mention that the filter is similar to a refrigerator filter and is tool-free.

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

"...No stink and no taste. Perfect!" Read more

79 customers mention71 positive8 negative

Customers like the performance of the water filter. For example, they mention it works well, is easy to install, and provides great results. Some say that the filter has no taste issues and produces wonderful water.

"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

"...Bottom line, exactly what we needed, works great, no brainer "upgrade" from the basic. Happy Filtering!" Read more

"...Not this one. Very happy with the results and easy add to your sink water stand alone water supply...." Read more

77 customers mention52 positive25 negative

Customers are mixed about the value of the potable water filter. Some mention it's cost effective, helps save money, and well worth it, while others say it'd be better off buying a cheaper filter.

"...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

66 customers mention45 positive21 negative

Customers are mixed about the water quality of the filter. Some mention that it's perfect, pure, and clean, while others say that it didn't improve the quality at all. Some say that the filter is full of trash from city water, and that it doesn't remove pollution from the water.

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

"...filtration system for my home; this system is perfect, the water quality is perfect, installation is seamless and I'm thoroughly pleased!..." Read more

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

"...Chlorine taste is gone and water is very neutral. Price is good." Read more

59 customers mention24 positive35 negative

Customers are mixed about the flow of the water filter. Some mention that the flow rate is good, while others say that it does slow the water flow. The filtered water runs very fast, while some say that the water flows less than 1 gallon per minute. The flow rate decreases after about 6 months, and some customers find it maddening.

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

"...Water flow is SIGNIFICANTLY reduced but not unacceptable. I'm happy with this under sink water filter." 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

"...The water flow is ok for the cold water but it would be nice if the pressure wasn't reduced from the filtering system." Read more

55 customers mention29 positive26 negative

Customers are mixed about the quality of the water filter. Some mention that it lasts longer than others they have used, has a sturdy build, and does not get too old. However, others say that filters only last a couple of months and do not last the 6 months as suggested on the box.

"Easy replacing, drips a bit while replacing filter. Lasts for 6 months in regular household use for two people...." Read more

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

"...It is super easy to install. And it last at least 6 months. The only flaw I see is that it reduces the water flow...." Read more

"Filter catches a lot of stuff you don’t want to consume! Filter was full of trash from city water !" Read more

I was bored !
5 Stars
I was bored !
Got my saw-saw and disassemble the top of the filter, just to see the inner makings. Had a carbon core, wrapped with a "paper" outer shell, which easily peels off, Amazon sells other filters that are cheaper, do they work as well as these ? Who knows, these claim to filter lead, while others may not filter lead, my wife is my filter replacement alert ,when she tastes chlorine, it's time to change the filter ! The only problem seems to be availability, otherwise great item.
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C. Y. Chu
5.0 out of 5 stars Do the job
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