Aquasana AQ-5300+.56 3-Stage Max Flow Under Sink Water Filter with Chrome Faucet , White

I got a plumber to install the unit who ran twice to the hardware store to get parts. Though I paid for the service, I am glad and happy with the end result. I trust aquasana because I had been a customer for at least 10 to 20 years with the counter top unit. I upgraded to under counter because it leaked. Only wish is that it should be made in USA.

Según este equipo tiene buenas reseñas por la calidad de filtración, y puedo afirmar que sí sabe bien, pero no quedamos a gusto porque el flujo es muy poca. Toma un minuto y medio llenar un litro, menos de 1/4 de la velocidad que debe ser. Tenemos muy buena presión de agua así que no hay problema por eso. Hablamos con servicio técnico de Aquasana y después de intentar varias cosas nos recomendaron devolver el producto. Así que lo devolví y pedi otra pero tenia la misma problema! Parece ser que es un problema que han arreglado en nuevas versiones, pero las que tiene Amazon esta defectuosas. No pierda su tiempo en pedir esto.

Good product so far. Was easy to install. The taste of the water and of the coffee improved dramatically, even though our municipal water is of excellent quality.

I did alot of research before buying this filter and I'm writing this review after having it installed for about 3 months. I wanted to share a lot of detail here because I hope its useful for other customers in my situation, and that the company might address these to make a better product in the future. The things that drew me to this filter were the good reviews on the Wirecutter, the NSF certifications (which I think are really important) and the price and availability of the filter and replacements. There are two things that were really disappointing about this filter and that the company should have corrected in my view. 1) The connections on this filter are not great. They have these pressure fit connections at the water supply line and the filter housing that do not at all inspire confidence that I will have no leaks long-term. Given the potential cost of water damage, I want to feel confident that the connection will not start leaking in the middle of the night or while away from the house. The connection to the cold water supply line in particular was really finicky to install properly but I did eventually get it connected. I would gladly have paid a bit extra for a system that had threaded connections with a washer integrated into a hose, similar to the way any modern kitchen faucet connects to the water supply lines. Unfourtunately, most other filters on the market seems to use these same kinds of connections, except for one or two whose brands I did not trust. 2) Exactly like many people had complained about, the first filter of the three, the sediment filter, did not sit correctly in the filter housing and so it would not push the valve open and I initially had no water. I resolved this by putting a small steel spring from a ball faucet under the filter to push it upwards slightly and keep the valve open and let water pass through. I'm hoping this spring is lead-free since it was inside a faucet from a major plumbing manufacturer, but I may replace it with a small piece of PEX pipe when I replace the filters. I'm guessing this was a problem with variance of these parts from their spec in the manufacturing process. So far I'm relatively happy with the purchase, but I bought it reluctantly. If the company addresses these two points, this would be a great product. The price is good as is the price of the replacement filters, at least at the time I bought it. As I said earlier in the review, I would have paid a bit extra ($15-$30) happily to have better connections. I think the taste of the water is good, although I was primarily interested in filtering contaminants. One thing I do not regret is buying the AQ-5300 vs the AQ-5200 because of the higher flow rate. I'm satisfied with the flow rate on the AQ-5300 but I could definitely see why people would be annoyed by a lower-rate of flow that the AQ-5200 has per the specs for that product. I saw many complaints about flow rate on the AQ-5200. I haven't yet replaced the filters so I may update this review after having done that. Hope this helps with your water filter purchase!

I've used the Aquasana 5300+ for 2 years now. To start, the pros: I liked the NSF certification and the fact that the filters seem to handle the widest range of contaminants. I live in San Francisco, where our water quality is already exceptionally good. I bought a filter to ensure that contaminants along the water delivery route (e.g. our building pipes) aren't coming in since we now have a baby. Despite reading all the reviews of leaks happening once you replace your filters for the first time, I naively figured it was likely something I could figure out and ensure wouldn't happen. Fast forward to today, every time I've replaced the filters, there have been leaks. I've done the research, watched many YouTube videos, browsed Google/Reddit suggestions, and have tried all the suggestions that worked for others. Don't overtighten, loosen a tiny bit after hand tightening, overtighten anyway, use a ton of teflon tape on the sump screw threads, replace the sump o-rings because they wear out or compress. No matter what I do, this thing leaks in one or two of the three filter canisters or sump heads one way or another. These are NOT big leaks - most often they only drip every few minutes. But that's completely unacceptable. I don't mess with water damage, potential mold growth or damage that may go unnoticed. I can't keep looking over my shoulder wondering. The time I've spent each time I've replaced these filters has not been proportional to the benefit/value I get from this system and that's why I've rated it as such. I initially bought this system because hey, save plastic, only replace the filter material itself, not the entire sump/body. Great idea, poor execution. Based on what I've learned, the filter replacements should include replacement orings (both the large one as well as 4 small ones per filter). The fact Aquasana does not provide these is deal breaking in my opinion because I expect to use an under sink water filtration system for years, ideally 5+. I take good care of the products I buy and the canisters look like they're built to last at least that long. So far I've identified or read about a few main/recurring issues: - the orings wear out and you have to replace them at your own cost, they don't come w/ the filter replacements (but a new battery does because they want to beep at you to buy more) - the manufacturing tolerances for the filter heights are too wide and can cause the filter to block the flow of water. Supposedly Aquasana tells you to put a quarter at the bottom of the canister to solve this. First of all, I want my water clean, why is the official guidance to add a dirty metal coin? - the prefilter sometimes blocks the flow of water if you turn it until it clicks into place. You may have to loosen the prefilter canister *just a bit* to have water flow through. - all of this tinkering also wears on the orings in a short amount of time, so while you're troubleshooting the system, you might actually be making them worse. - I've also read that the main plastic housing under the Aquasana cover can crack, though I don't think mine has yet. In the end, I cannot recommend this system because it feels like a massive waste of time monitoring the under sink system for DAYS after replacing the filters. Yes, each time, I've managed to do some random combination of things that ends up with the filter no longer leaking. But in those few days, I have to take 1/4 of the items out from under the sink, leave the cabinet door open, have rags nearby, and see how quickly water accumulates if there is a leak, where the leak is coming from at either the canister or sump top. I have to tell my wife to work around this mess and I have to close the door when my toddler is home while remembering to monitor the origin of leaks. My time and your time are valuable and I'll be looking for another system once I do some more research. I'm bummed because the NSF certification was a big selling point for this system and the flow rate has been fine when it works. I've read that Aquasana charges shipping to resolve this past the 1 year warranty (sometimes even w/in warranty), which of course is when most folks will run into issues, so I did not bother with this. $10 shipping = $10 savings when I move to another system. I don't normally take the time to write such a long review, certainly not a negative one, but I should have heeded all the other reviewers that complained about leaks and not naively assumed I'd be able to figure it out. I've rescinded recommendations to friends due to the headache when it comes to replacing filters. I don't have any issues with Aquasana as a brand, but considering this seems to be a popular model, please consider providing the necessary orings to replace with filter packs (instead of the battery, if that cuts costs), fix your manufacturing tolerances so I can expect proper functionality when I put replacement filters in AND click the canisters into place *all the way*, and stand by your product. You've effectively sold us lemons and told us to fix your issues with quarters.