I am definitely not a plumber.

Excelente producto, podemos sustituir uso de agua embotellada usando este filtro y cambiandolo cada 6 meses como lo marca la especificacion para evitar riesgos en la calidad de agua obtenida

New design improves water flow significantly. This is one of the easiest to install and replace under sink filters and you can trust 3M for accuracy in the rated performance. They are a bit expensive when you have to replace every 6 months but worlds better than Brita or other carafe style filters.

Don’t buy it!The water flow was fine in the first week or two, then it reduced significantly and you will need to replace with the new filter!

The product is excellent, I have bought 4 of these now, Filtrete Advanced is the BEST "flavor" of water of all water filters, but the Maximum filter is okay too.The plastic tubes are much easier to work with than the copper tubing of the more expensive reverse osmosis under-sink filters out there. And the quality of water is the same and better taste in my experience.The hardware does not leak ever and the tubes can be disconnected and reconnected easily and done so many times with no issues. You may need some adapters from your hardware store, they provide the adapters for common under sink fixture sizes, but not all sink hookups are the same size. I actually have 2 of mine adapted to fit a garden hose because I would rather make my filtered water that way since I don't have the kind of sink that has a separate spout for drinking water and I don't want to use filtered water for washing my hands and doing dishes, that's just wasteful of this expensive filter's total throughput. Tap water is perfectly good for those 2 things.I find that the flavor stays the same for more than a year (not just 6 months) for a family of 3's worth of water if you only use it for making drinking water and don't also use it to filter water for doing dishes and every time you wash your hands.

Ok first off: If you are looking for an under-counter reverse osmosis system with full flow for less than $100 bucks, then this is not for you.However: If you are looking for an inexpensive filter system that gets rid of the taste of chlorine on the cold water line in. your kitchen, this may work for you.Installation: It was easy to install in-line with the supplies in the box and the existing line going to the cold water feed. It mounts easily under the cabinet. The filter itself does not need priming or flushing prior to installation or use. It was a straight forward job to get it installed and can be accomplished by anyone who has changed a feed line on a tap or bathroom fixture.Performance: Well its almost like a Brita filter for the cold water line... It does restrict the cold water flow a bit, but not a lot and that was to be expected. I just turned down the hot water feed to match the pressure and they are still balanced. Even while operating on cold water only, the spray feature on our tap works, so there is still enough pressure.Taste: Its as clean as the water coming off the fridge. Not quite reverse osmosis level, but a noticeable enough difference in cleanliness. Our coffee and tea does not have a faint taste of chlorine. So good for drinking and cooking. That was the goal, and it works.The final comment which we cannot give now is length of service and swapping. In researching a product, we learned that the "Advanced" filter was good for 2000 Gallons, the Maximum is only good for 1500 gallons. Since the filters are interchangeable, we went with the advanced to start, and we are happy with it. Less expensive, good performance and longer life. So we will stick to that. The filter is supposed to be easily swapped when its time to change it, and considering the ease of installation I can't see that being different. Plus, no priming and 1/4 turn to swap it. We will see. It is considerably easier to use than the filter system in our previous home.Conclusion: Does exactly what we wanted/expected and for a very reasonable price.

I got this filtration unit three years ago along with expensive 4-filter Royal Berky system. I did an extensive research for water filtration systems and didn't want a reverse osmosis filtration that removes naturally occurring minerals (although a few incorporate Re-Mineralization) that contribute to a good taste and health, and wastes a large portion of water to produce a fraction of drinkable water. My original plan was to double filter through Royal Berkey by using 3M Filtrete water for the purest water possible while retaining minerals. After a few months, I stopped using Royal Berkey because it required constant maintenance and Filtrete is so much more convenient and drastically improved water taste on its own with no noticeable odor from my tap. I use the filtered water for cooking, coffee/tea, drinking, pet water, aquarium, etc. The following performance data sheet info is included with the 3US-PF01 Advanced Water filter:Chlorine Taste and Odor - Avg % Reduction 97.5%Nominal Particulate Class I, ≥0.5 to Microbial Cysts - Avg % Reduction 99.99%3M also seems to care about their product from my recent interaction with the company. I recently replaced the 3US-PS01 filter as usual but tasted chlorine for the first time in 3 years. After a week of noticing the off-putting taste especially when used for my tea/coffee, I decided to contact 3M to report the problem. Although they never heard of such issue, they decided to send me a replacement filter and asked to send back the defective filter for evaluation. The replacement filter they sent worked immediately to remove the chlorine taste and I was able to send back the defective filter through a prepaid label. I finally decided to write this review after the experience, and I'm glad the company cares enough to investigate and improve their product consistency.One thing that you may want to consider is to install a dedicated filtered water faucet after trying it. For two years, I simply installed the system as the direction indicated on my existing kitchen faucet. The installation was very easy, but my cold water pressure got affected slightly and I felt like I was wasting filtered water whenever I was doing dishes or using warm water in my sink. Also, I always had to be careful to let the faucet water run for a bit to remove the stagnant unfiltered water in the faucet path, and just a bit of the unfiltered water was enough to ruin the taste of the drinking water. After installing a dedicated filtered water faucet that I got from Amazon (I used KES Z501C), my family can access filtered water immediately and my kitchen faucet water pressure got restored. It required extra work, but the effort was totally worth it.I suppose I'm saving my dusty Royal Berkey for the zombie days to filter local stream/rain water should the need ever arise, but I'm very happy with the inexpensive Filtrete system and never thought to research for another filtration system since use. I highly recommend you give this a try.

We grew tired of the faucet-mount models from other manufactures that seem to be made of cheaper materials every time we we replace one. Besides, faucet-mount models limited our choices on faucet designs. This model installs out of the way under the sink in space that it not normally used, so we gave up none of our under-sink storage capacity to install this unit.I was paranoid and looked into buying brass parts to use in lieu of those that came with the unit, but after checking with guys who know what they're doing I was assured the parts that come with this unit are top quality. The unit comes with a brass piece for the one place where it makes sense to use brass.The design in general is very consumer-friendly. I can do some basic stuff around the home, but I am by no means a handyman, and I was able to install this model easily. Just take your time and be careful to closely follow the instructions. Make sure you press the blue tube into the connectors until it completely connects with an obvious click and is inserted all the way into the connector according to the instructions. You may have to press a bit if you're laying under the sink at an awkward angle, but just make sure you do that and you're good to go!The filter is large - several times as large ad the faucet models we have used from other manufactures in the past - which means there's a lot more filtering between when the water leaves the pipe and get comes out the faucet. I like that. And the NSF ratings for this model (I recommend the Advanced model that removes the parasitic cysts) are excellent! Best of all, the water tastes excellent! We buy cases of half litre bottled water to have on hand in the event of a water outage, which means we need to gradually drink it. I refill my bottles at the faucet over and over and put them in the fridge. I've always got a few bottles chilling the the fridge.The filter life of six months is excellent. Based on the average price for refill filters I have found it works out to around $5.00/month. That's pretty darn good.