

🚿 Elevate your daily ritual with cleaner, softer water — because your skin deserves the best!
The Aquasana AQ-4125 Replacement Cartridge is a certified two-stage shower filter cartridge that removes over 90% of chlorine and harmful chemicals using coconut shell carbon and KDF media. Designed for easy, tool-free replacement, it softens skin and hair by eliminating harsh contaminants and improves shower air quality by reducing VOCs and THMs. Compatible with Aquasana AQ-4100, AQ-4125, and AQ-4105 models, this USA-made cartridge delivers healthier, fresher showers with proven NSF certification.








| ASIN | B000YFD6WU |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #7,543 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Showerhead Filters |
| Brand | Aquasana |
| Color | White |
| Compatible Water Purifier Models | Aquasana AQ-4100, Aquasana AQ-4105 |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,954) |
| Date First Available | January 15, 2007 |
| External Testing Certification | NSF |
| Global Trade Identification Number | 00890496000093 |
| Included Components | shower filter replacement cartridge |
| Is Discontinued By Manufacturer | Yes |
| Item Package Quantity | 1 |
| Item Weight | 1.59 pounds |
| Item model number | AQ-4125 |
| Manufacturer | Aquasana |
| Material | Plastic |
| Number of Items | 1 |
| Part Number | AQ-4125 |
| Pattern | Filter Cartridge |
| Product Benefits | Reduces chlorine for softer skin and healthier hair |
| Product Dimensions | 2.76"D x 6.3"W x 2.76"H |
| Set Name | Aquasana Shower Filter System |
| Size | 1-(Pack) |
| Style | Cartridge |
| UPC | 890496000093 |
| Unit Count | 1.00 Count |
| Warranty Description | 180 Day Limited Warranty |
T**E
Works great, made in the USA, this is what you want for a better shower!
Excellent product, MADE IN THE USA -- it matters, and most importantly works well! We can absolutely feel the difference once a new filter is installed -- the water is softer and not nearly as abrasive. Skin and hair do better, this really does change the way you shower, and it's also very affordable and worth every penny! Also, as long as it's installed properly (which is not difficult), you will not have any "messes" to deal with -- and we have had this for years with no issues. The only downside is that it really does not be replaced more often than the recommended 5 months. I would say every 3-4 months. Still absolutely worth it. PROS: +Works well, removes most of the harsh chlorine in your water. +Skin and hair feel much better. +Affordable. +MADE IN THE USA CONS: -none really, just make sure to replace it every 3-4 months depending on usage
D**Y
Only buy the real Aquasana version. The generic ones only last 3 weeks before they get clogged.
This works great, just as described. It is not a water softener. It's a chlorine filter. Like it says. All these reviews about the high TDS readings are beyond ignorant. A water softener system is huge and costs thousands of dollars. This filter helps reduce chemicals from processed city water. Like it says.
E**K
One of (my) life's little necessities
I've used this filter for about 5 years now - and I can't be without it. I don't want to ever be without it, is probably more accurate, but seriously, the difference it makes in my skin, my hair, the rashes I get on my back, dry hands and nails, even difficulty breathing in the shower - this filter makes all those things seem like a bad dream. Just last week, during warmer weather when the humidity was high and it was raining off and on here in the Midwest, I was experiences the driest skin, and the driest hair and I just thought, so this is what happens when you get older - is it? I looked in my bathroom cabinets, I had 6 different shampoos each promising to fix the dry hair I thought was mine for the rest of my life, and next to the shampoos, I don't want to even tell you how many creams and lotions I'd collected, each one promising to do what the one before didn't. Nothing worked. All that money spent on nothing useful, I still itched, and my hair looked awful, no life in it at all. Then the lightbulb moment: I remembered that I hadn't replaced the Aquasana filter on the shower for over 5 months (and yes, I usually need to do it every 4 months, not 6, we take long showers in this house) - so I did, and the next day after one shower, I could feel the difference, less itchy skin, less redness on my face, and my hair, which had been coated with heavy shampoos that I'd bought to fix my dry hair - it felt and looked so much better right after the shower. Much healthier, and shinier. Fast forward to this week, one week of Aquasana filtered showers, and all is well. Even my legs don't feel dry, and my hair looks like it did before I FORGOT to REPLACE my Aquasana shower filter. Today is garbage pick up and I was able to throw away the half used bottles of shampoos that made me cough, lotions that either did nothing or made me feel sticky until I washed it off - now it's back to a simple shampoo and simple uncomplicated lotion. I'm telling you this filter makes all the difference in the world. If you find it to be expensive, I urge you to try it if you can, because at least for me, the cost of the filter for 4 months (my choice, long showers) is offset by my not having to buy expensive shampoos that promise to fix what's ailing the hair, but only make it worse, in combination with bad water - as well as body and face lotions that cost so awfully much, but again are only temporary fixes and can't fix the real problem of the coating that's on your skin from unfiltered shower water. It sounds like a commercial, but these filters may be expensive but they will pay for themselves by taking the place of the other products you'll no longer have to buy. I can't say enough good things about this filter - clearly by the length of this review, it would appear I've said plenty, so I'll shut up now, hoping you'll give this filter a try because I know you're going to love it. Okay. I'm done. I'm gone. Just buy it. You can come back here and thank me later. Enjoy.
M**.
Good filter but doesn't last 6 months
The filter only lasted 4 months before the water started smelling unclean. Switching to a cheaper brand...
U**K
MY BEST CHOICE EVERY TIME...
I HAVE ALWAYS PURCHASED THIS SAME ITEM WHICH HAS ALWAYS WORKED WELL FOR ME, THAT'S WHY I KEEP MAKING THIS PURCHASE WHEN I NEED IT. I HAVE ALWAYS NOTICED THE WATER DIFFERENCE WHICH MAKES MY HAIR AND SKIN FEEL GREAT. I AM A HEALTH NUT SO HAVING THIS FILTER CLEAN UP THE STEAM AND WATER WHILE I SHOWER IS A BREATHING PLUS FOR MY LUNGS.
C**T
Great filter replacement
Love this filter replacement. Using a filter is supposed to be better for both your hair and skin. It is easy to install, does not change the washer pressure (which is very important to me), does not leak, and doesn't look too unsightly.
A**A
Great Filter Replacement Option
Have been using these filters for years now. Big difference in how our water smells and feels. Easy to install, decent price, and does not hinder water flow. The water color is black (harmless charcoal) when you first run the water with a new cartridge, be sure to read the directions your first time, you want to run it until the water runs clear, then it's ready for use going forward!
S**S
Not user friendly
While the filtration itself is pretty good and takes out chlorine, get ready to pay an additional $150 - $200 twice per year for a plumber to come out, because this thing does not install or replace without leaking all over the place. Certainly not user friendly.
J**M
This thing is bulky and ugly but it works SO well. I bought it after moving to a house with well water and noticing discolouration, dryness, and breakage in my hair which I’d never had before. My skin was also becoming dry and itchy. I noticed the difference with this filter immediately. The water smell disappeared, my hair felt silky smooth, and so did my skin. When I needed a replacement filter after a few months, I opted to I try the Jolie filter which has celebrity endorsements and Instagram ads everywhere, because it’s much sleeker and had great reviews too. The Jolie filter is actually useless in comparison to this one, so I’m going back to Aquasana. Great product!
K**G
Aquasana shower filter is very good product and I am using it for more than a year, hope you will have more AQ-4125 replacement cartridges in stoke soon.
C**N
Me ha funcionado bien, cumple expectativa en calidad y precio
M**L
not for me but I believe its works
K**.
I have used this product for many years and have found it to be of top quality. My skin feels clean after having removed all the toxins that are in our water now.
Trustpilot
1 month ago
1 month ago