AquasanaReplacement Filter Cartridge for Countertop Water Filtration System - Removes Up To 97% of Chlorine & 99% of 77 Contaminants - Filtration for Clean Tasting Water from Kitchen Faucet- AQ-4035

We've been using this filter for 15+ years.I'm glad that we found the store in Amazon so we can order replacement filter.It works great and save tons of $ buying water bottles at supermarket.

$60 for a filter that will last 6 months, can't beat it! The water clearly tastes better through the Aquasana filter as opposed to straight tap water. never noticed it before, but I can actually smell the chlorine in our tap water when I don't use the filter. My wife, for some reason doesn't use the filtered water, sometimes when she pours me a glass of water I can tell immediately that it's the tap water. The taste and smell are noticeably different. She says I'm crazy, but after drinking the filtered water it has ruined me for tap water. I've been using these filters now for 2 years, have never had any problems with them or with water pressure as I've read on other reviews. When you replace your filters, take a look at the used ones and compare the coloring to the new filters, you'll see how brown the used filters are, if not, maybe it's our local water. :)

Excellent product fast delivery

We purchased this filter system 6 or 7 months ago to replace a GE system. We where very happy with the filtration function as it removed both chlorine residue and water off tastes, we were not happy however with the unit's manufacture as it leaked like a sieve necessitating a bucket under the sink . I sent an e mail to the Aquasana company and they immediately sent a new holder and a new set of filters. An easy install and NO LEAKS. I don't know if their quality control has improved- if we got a defective unit originally or whatever, but I am very satisfied with the performance of the replacement unit and the company's quick efforts to correct the problem.

I rent and needed an option that wasn't too much work. The faucet adapter was a struggle for me because the spigot my landlord installed is not common - but eventually I got it figured out. The hoses are somewhat rigid so depending on counter space it could be difficult to weave them into a place of your liking, but that also worked out. Once installed, I have been very happy with the unit. The taste and ease of use is great. Start faucet, pull small plug to activate filtered water and when done, just turn off spigot - the plug will close itself when the water pressure decreases. In regards to the filter replacement - it's true that it isn't easy, but it is possible. I had my unit 7 months before changing the filter and it's just important to know to push down the gray ring to disconnect the hoses and to employ a pliers to unscrew if needed. I wrapped the wingnut with a dishcloth and hammered a bit with the nose of a pliers and that loosened it enough to unscrew by hand. One other note - I noticed multi-streams from the spigot so I unscrewed the small output nozzle to find three very small metal strainers. One had rust gunk in it so I just threw it away and once back together the water comes out in a single stream again. Overall great product.

Delivery on time. Good product as described.

I bought the complete counter system a few years ago and purchased the filters twice a year. These filters work great! Follow instructions provided and you will not have any issues with your drinking water tasting good.

The singularly most difficult, frustrating, time-consuming filter replacement ever. We have had our Aquasana AQ-4000 unit for 4-5 months and ordered the replacement filters. We are apoplectic that we just sank another $60 in filter replacements and one of them is inordinately difficult. Instructions said to use the bottom of the one removed. HA! Broke that plastic all to smitherenes. Pliers, tongs, plumbers wrench, screwdrivers.. nothing. Four days later, after multiple efforts, we have successfully removed the downward facing filter and replaced it with the new filter, only to discover it now leaks due to the o-ring having become dislodged. Putting it back in does nothing to stop the leak.We are chalking this one up to a very expensive experience, throwing the most recent $60 investment out the window (because our health blood pressures are worth at least that much) and buying an entirely different unit.Fire that engineer. Worst design ever.