3M Aqua-Pure Under Sink Water Filter System AP200 - Enjoy Full Flow Clean Water

Patrick T. Kelley: This is a very nice (simple) filter. I've had one on a different sink for 25 years - it works well taking out the chlorine taste etc. Doesn't take up much space and uses standard 3/8 pipe inlet and outlet fittings. Word of caution - the installation instructions specify teflon tape at these fittings - not very effective. I tried it and had two persistent drips. I took the fittings off and used Rectorseal Tplus2 (teflon paste) instead - much more effective seal between a brass fitting and the slick plastic threads on the filter body.

United States on Jun 22, 2023

CS: Water inlet into filter as well as water out are attached with 3/8 inch MIP/NPT fittings which is good. Most competitor’s products use slip joints which will eventually pop off and have the potential to result in a disastrous flood. This happens with regular frequency because the filter clogs if not changed frequently and then back pressure builds until the incoming slip water connection pops off. And voila you have a flood!
Unfortunately this 3M filter is basically for sediment and only filters down to 5 microns.
If someone knows of a water purification system that filters for smaller particles and can be connected with NPT/MIP or compression fittings and not the slip connections then I would love to hear from them and will buy it.

United States on Mar 04, 2023

the stig: Seems like it would be a good product but the screw in filter broke on install. Did not even tighten it like a defect in manufacturing.

United States on Apr 01, 2022

Bearpaw: No more chlorine smell. Perfect for house use

Canada on Mar 29, 2022

Pen Name: I had to write this review so nobody repeats my mistakes. This was my first time replacing this filter because we rented this house. I knew nothing about it and went to youtube for help and surprisingly found nothing but I did find the manual on aqua pure’s website. When the filter arrived it had directions (you never know so I wanted to be prepared). It was hard getting the outer canister off. I was afraid I was going to rip it off of the cabinet wall so I started tapping all around it in case there was sediment etc sticking and that did the trick and the canister finally unscrewed. I then unscrewed the filter cartridge that’s inside with no problems (have a towel and bowl under to catch water)and cleaned around everything because there was calcium gunk and chunks stuck inside the cap. I started screwing the new filter cartridge in per the directions which said hand tighten and it just kept spinning and then SNAP, the nipple part with the threads broke off inside the cap. (This is what happened to other reviewers and I was totally careful and it still happened to me -definetly a design flaw because you feel resistance but not really tightening) I called amazon and they sent a...

United States on Aug 19, 2019

Isabelle: Replaced the old unit with this new identical unit. Not sure how well this set up filters and purifies the water ... have to assess this over time.

Canada on Mar 11, 2019

Frank Bola: Exactly as advertised . Good product

Canada on Dec 10, 2016

williamoss: I agree that the statement of 2 gal per minute is slow, which is why I use the AP in bathroom sinks and allow all the cold water to go thru the filter. They still last about a year. According to CUNO, technical service, it is time to replace the filter when you see a drop in the flow. That shows the filter is blocked. In my kitchen I have mounted a Whole House Filter. This gives me a flow rate of 5 gal per minute, which is higher than the faucet allows you. Standard Faucets are set to 2 1/2 gal per minute. I inserted a charcoal filter in my housing, available both thru CUNO or Home Depot Lowe's etc. Again the filters last at least a year. I used to live in New York City in a building that was made with galvanized pipes and was 100 years old. The pipes had lots of rust in them and dirt, The Whole House Filters took out everything and lasted more than a year. I would change them every January just out of guilt so to speak. They filters are so cheap why not change them? I now have them in my home under both my sinks in my kitchen. One I have plumbed to filter all the water going to my Instant HOT and also to the cold water side of my faucet at the same time. This way when I want a...

United States on May 03, 2011