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Filtrete Standard Under Sink Quick Change Water Filtration System 3US-AS01

4.6 4.6 out of 5 stars 649 ratings

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  • BETTER TASTING WATER - This system reduces chlorine taste & odor for great tasting water
  • CLEANER WATER - This system reduces sand, soil, rust, and sediment (five microns)
  • USES EXISTING FAUCET - Filter water right at the sink without having to install an entirely separate faucet
  • QUICK CHANGE - The filters in this system are easy to install, requiring just a 1/4 turn for a quick change
  • SIX MONTH FILTER LIFE - Use these filters for up to six months each
  • NSF STANDARD 42 CERTIFIED - Tested and certified by one of the world's most respected independent certification organizations that helps protect the world's food, water, consumer products, and environment
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Customer ratings by feature

Flavor
4.5 4.5
Easy to install
4.5 4.5
Value for money
4.3 4.3

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Filtrete Standard Under Sink Quick Change Water Filtration System 3US-AS01
Filtrete Standard Under Sink Quick Change Water Filtration System 3US-AS01
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PriceCurrently unavailable.$33.99$34.99$27.99$59.59$43.99
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it Mar 25 - 27
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to install
4.5
4.9
5.0
5.0
4.2
4.9
Value for money
4.3
4.5
4.8
5.0
4.0
4.6
Flavor
4.5
4.6
4.7
3.6
4.5
Sold By
Water Purity Expert
PUREPLUS FILTERS
Lafiucy-US
DiscountFilterStore
Water Purity Expert
material
Activated Carbon,Lead-Free & BPA Free and Food-Grade Material
Carbon
Carbon,Coconut Shell,Activated Carbon,Activated
duration
6
6
3
6
certification
ANSI, NSF
IAPMO
ANSI, NSF
NSF
NSF
WQA
model number
3US-AS01
AQU-WF01
WFC2800A
CTO 4 pack
3US-PF01
FL-UF00

From the brand

Product guides and documents


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 Standard Under Sink Quick Change Water Filtration System 3US-AS01

Get great tasting, cleaner water. This system reduces chlorine taste and odor, sand, soil, rust and sediment. It allows you to use your existing faucet without having to install a separate faucet. The system is NSF Standard 42 certified and uses Sanitary Quick Change replacement cartridges that requires a simple quarter turn for installation with no spilled water or mess to clean up.

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 Description

The Filtrete Standard Under Sink Quick Change 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
649 global ratings

Customers say

Customers like the performance, filter, and flow rate of the potable water filter. For example, they mention it works great, the filters are easy to find and replace, and the water flow is better than expected. Customers are also impresseded with the quality, saying it does a wonderful job filtering the water. That said, opinions are mixed on leakage.

AI-generated from the text of customer reviews

145 customers mention136 positive9 negative

Customers find the installation of the potable water filter relatively easy. They mention the instructions are easy, and the most difficult portion is just bolting. Customers also appreciate the price and ease of use.

"...system made attractive claims that enticed me to try it: it is easy to install (they claim under 30 minutes), and does not require a separate faucet..." Read more

"Installed this water filter in less than 10 minutes. The instruction were easy, the most difficult portion is just bolting/ mounting the holder to..." Read more

"...The reviews on this were positive, so we gave it a shot. It was easy to install, and provides very effective filtration, providing good tasting..." Read more

"...While this product works great and would have been incredibly easy to install if my water supply connections were 3/8", I experienced some..." Read more

83 customers mention77 positive6 negative

Customers are satisfied with the taste of the water filter. They mention that it removes the metallic taste and the chlorine taste.

"...Overall good install and pure tasting water." Read more

"...easy to install, and provides very effective filtration, providing good tasting water from the cold tap...." Read more

"...After installing this I've noticed better tasting water and definitely less discoloration due to the rust...." Read more

"...The difference in flavor is night and day. My wife is pickier about her water than I am, and will now freely use the kitchen tap for drinking water...." Read more

78 customers mention67 positive11 negative

Customers are satisfied with the quality of the water filter. They mention that it is a very good filter, it does a wonderful job filtering the water, and that the water quality is excellent. The filter kit is well made and seems like a good value. Overall, most are happy with their purchase and recommend it to others.

"...if they are caught in the faucet output filter, but the filter really does do the job, and water flow remains good. I'm pleased with it." Read more

"...It was easy to install, and provides very effective filtration, providing good tasting water from the cold tap...." Read more

"...We have been very pleased with the unit, and in my limited experience don't see a need for anything more complicated or expensive than this...." Read more

"Does a wonderful job filtering the water." Read more

55 customers mention55 positive0 negative

Customers are satisfied with the performance of the water filter. They mention that it works great, has no pressure problems, and the push-in fittings worked fine.

"...While this product works great and would have been incredibly easy to install if my water supply connections were 3/8", I experienced some..." Read more

"It was easy to install and works great!" Read more

"...Other than that, the filter works fine, although it does put out a fair amount of white sediment the first dozen or so uses...." Read more

"...This works perfectly. The only thing is the blue hose it comes with is pretty stiff since its plastic...." Read more

41 customers mention35 positive6 negative

Customers like the value of the water filter. They say it's reasonably priced, easy to install, and does exactly what it says it does. They also mention that replacement filters are well priced and easily available online. Overall, customers find it to be a great investment into better drinking water.

"...ease of use, the fact that it does what it says it does, replacement filters well priced and easily available online--and may be available in big-..." Read more

"...Highly recommended, quick and inexpensive, and you'll appreciate it the first time you make a gallon of juice or don't have a refrigerator dispenser." Read more

"...last substantially longer than the Brita models making this an excellent value...." Read more

"...The replacement elements are less than half the cost...." Read more

35 customers mention32 positive3 negative

Customers are satisfied with the filter. They mention that it is easy to install and change the replacement filter. The twist-lock system makes replacing filters very easy. The filter is fine and saves their RO filters so they will last up to a year.

"...Changing the filter is easy, but I'd recommend placing a rag under the filter just before removing it, because if you don't rotate it quickly enough..." Read more

"...The filter was fine but be aware that an undersink filter like this takes 3/8 tubing and a fridge filter takes 1/4 tubing so you need an adapter on..." Read more

"...This one replaces very easily. Water quality is excellent...." Read more

"...these filters every 3 months at a cost of under $20 and it saves my RO filters so they will last up to a year!!!..." Read more

24 customers mention18 positive6 negative

Customers like the flow rate of the water filter. Some mention that it's better than expected, excellent, and fast. They also say that it doesn't mess with the flow of the sink faucet and that it improves the water instantly.

"Instant improvement of water from my kitchen faucet. I followed the instructions and installation only took a short while...." Read more

"...Once installed wate flow was very good and the filter removed all the chlorine taste of the water...." Read more

"For the price you can't go wrong! Doesn't mess with the flow of the water on the sink faucet, which was my main concern..." Read more

"...noticed that my hot water (which was not filtered) was also running just as slowly...." Read more

22 customers mention11 positive11 negative

Customers are mixed about the leakage of the potable water filter. Some mention that it works well and does not leak, while others say that they had an issue with a leak between the coupler and the filter.

"...I followed the instructions and had it installed in about 25 minutes. NO LEAKS!!..." Read more

"...I stopped there, and when I turned on the water, they leaked. I checked the instructions, which said to push the blue tubes in HARD until they stop...." Read more

"...All hooked up and no leaks. But I'll need to use it on a few trip to see how the water tastes." Read more

"...He took everything apart and diagnosed it and determined that the membrane erupted and the coffee ground looking material was the actual filter..." Read more

Great inexpensive kitchen upgrade that works well. Got rid of the chlorine flavor in our water!
5 Stars
Great inexpensive kitchen upgrade that works well. Got rid of the chlorine flavor in our water!
Our city water was getting worse and worse with a lot of chlorine flavor. The filtered water on the fridge is great, but for filling pitchers or anything more than a small glass of water, it takes forever. If your refrigerator doesn't have a water dispenser, this is the answer. We recently had triplets and have been making baby formula by the pitcher, and wanted to be able to use filtered water.I was skeptical about this unit because of the price, but decided to give it a try figuring we could always replace the standard filter with the advanced model if it didn't seem to be doing the job. We have been very pleased with the unit, and in my limited experience don't see a need for anything more complicated or expensive than this. It is sturdy, has a large filter and it came packaged with everything needed for the install when standard 3/8" water lines are in use (almost every kitchen faucet uses this size). We installed it on the cold side of our faucet only in less than ten minutes. One of the quick-connect fittings had a slight drip at first, but after removing and reinserting the tube and giving it a wiggle it seemed to seat just fine. I believe the instructions direct to not use it on hot water, and don't know why you would.The difference in flavor is night and day. My wife is pickier about her water than I am, and will now freely use the kitchen tap for drinking water. The chlorine taste is gone, it's at least as good as what we are used to coming out of the fridge and is very close to any bottled water. Anything that we would want filtered drinking water for we can now get quick and easy right out of the tap which is great for larger quantity items like juice.It did slow the water flow slightly. The product is advertised as flowing 2 gallons per minute. Before installation, I timed filling a gallon pitcher at 29 seconds, almost exactly 2gpm. With the filter in place, it slowed slightly to about 35 seconds per gallon, about 1.7gpm. Practically speaking the difference is minimal.Highly recommended, quick and inexpensive, and you'll appreciate it the first time you make a gallon of juice or don't have a refrigerator dispenser.
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Reviewed in the United States on September 14, 2016
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Reviewed in the United States on September 21, 2014
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Top reviews from other countries

Brian
5.0 out of 5 stars Easiest install yet!
Reviewed in Canada on October 17, 2018
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Brian
5.0 out of 5 stars Easiest install yet!
Reviewed in Canada on October 17, 2018
Just arrived yesterday and installed in less than an hour. Had to install a new shut off valve, otherwise it would have taken 40 minutes. Seems to be working great. Installed this to replace our Brita water filter jug. One thing that I liked about product was the ability to order 3 different levels of replacement filters. Water tasting good. Thanks Filtrete.
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One person found this helpful
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XL
5.0 out of 5 stars Easy to install works well!
Reviewed in Canada on April 5, 2017
Ron
4.0 out of 5 stars Good Quality
Reviewed in Canada on November 23, 2019
weegee
5.0 out of 5 stars A good under-sink filter unit
Reviewed in Canada on December 16, 2019
Papa G
5.0 out of 5 stars Great product
Reviewed in Canada on April 17, 2015