---
product_id: 1097827
title: "Aquasana Shower Water Filter System Replacement Cartridge - Filters Over 90% of Chlorine - Carbon & KDF Filtration Media - Soften Skin and Hair from Hard Water - AQ-4125"
brand: "aquasana"
price: "673 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Aquasana"
url: https://www.desertcart.ro/products/1097827-aquasana-shower-water-filter-system-replacement-cartridge-filters-over-90
store_origin: RO
region: Romania
---

# Coconut shell carbon media Filters 90%+ chlorine Tool-free twist & replace Aquasana Shower Water Filter System Replacement Cartridge - Filters Over 90% of Chlorine - Carbon & KDF Filtration Media - Soften Skin and Hair from Hard Water - AQ-4125

**Brand:** aquasana
**Price:** 673 Lei
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your daily ritual with cleaner, softer water — because your skin deserves the best!

## Quick Answers

- **What is this?** Aquasana Shower Water Filter System Replacement Cartridge - Filters Over 90% of Chlorine - Carbon & KDF Filtration Media - Soften Skin and Hair from Hard Water - AQ-4125 by aquasana
- **How much does it cost?** 673 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/1097827-aquasana-shower-water-filter-system-replacement-cartridge-filters-over-90)

## Best For

- aquasana enthusiasts

## Why This Product

- Trusted aquasana brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Maintenance:** No plumber needed—simple twist-off cartridge replacement keeps your shower fresh and healthy.
- • **Breathe Cleaner, Live Better:** Removes harmful VOCs and THMs from shower steam, improving air quality and reducing health risks.
- • **Pure Shower, Pure Confidence:** Reduces over 90% of chlorine for noticeably softer skin and hair within a week.
- • **Eco-Friendly Filtration Power:** Dual-stage carbon & KDF media certified to NSF/ANSI Standard 177 for superior chemical removal.
- • **Made in the USA, Trusted Worldwide:** Premium genuine replacement cartridge ensures consistent performance and durability.

## Overview

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.

## Description

Product Description The Aquasana Shower Filter has a unique two-stage filter process for the healthiest shower possible. Stage 1 removes chlorine and enhances pH balance with a natural copper/zinc mineral media called KDF-55D. Stage 2 uses a carbonized coconut shell medium for the removal of synthetic chemicals, THMs and VOCs that vaporize from tap water and are inhaled or absorbed through the skin, potentially causing adverse health and cosmetic effects. Anyone who has ever gone swimming in a chlorinated pool knows how chlorine robs moisture from your skin and hair. What most people don't realize is that typically there is as much or more chlorine in tap water as there is in most swimming pools. Chlorine strips the natural protective oils from skin and hair, causing excess dryness. Without the harsh effects of chlorine, you'll notice significant cosmetic benefits . softer skin and hair in a week! Also, by removing chlorine and other chemicals found in tap water, now known to be a significant source of exposure to harmful VOCs and THMs, you eliminate health risks related to inhalation and skin absorption of these chemicals. Your shower water will feel better, and will be better for you! From the Manufacturer The Aquasana Shower Filter has a unique two-stage filter process for the healthiest shower possible. Stage 1 removes chlorine and enhances pH balance with a natural copper/zinc mineral media called KDF-55D. Stage 2 uses a carbonized coconut shell medium for the removal of synthetic chemicals, THMs and VOCs that vaporize from tap water and are inhaled or absorbed through the skin, potentially causing adverse health and cosmetic effects. Anyone who has ever gone swimming in a chlorinated pool knows how chlorine robs moisture from your skin and hair. What most people don't realize is that typically there is as much or more chlorine in tap water as there is in most swimming pools. Chlorine strips the natural protective oils from skin and hair, causing excess dryness. Without the harsh effects of chlorine, you'll notice significant cosmetic benefits ... softer skin and hair in a week! Also, by removing chlorine and other chemicals found in tap water, now known to be a significant source of exposure to harmful VOCs and THMs, you eliminate health risks related to inhalation and skin absorption of these chemicals. Your shower water will feel better, and will be better for you!

Review: 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
Review: 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.

## Features

- Trusted Replacement For Aquasana Shower Filters - Replacement cartridge for the AQ-4100, AQ-4125, AQ-4105
- Ensure Water Quality w/ Genuine Replacements - Untested replacements are not certified for performance capacity or contaminant removal
- Premium Carbon Filtration - Filter your shower water with coconut shell carbon and copper-zinc media that is independently tested to NSF/ANSI Standard 177 to reduce more than 90% of chlorine.
- Replacements Made Easy - No tools or plumber required. Simply twist, remove, and replace
- Clean & Healthy Water - Removes chlorine and other chemicals from your shower steam for better quality air while you shower

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **External Testing Certification:** NSF
- **Item Weight:** 1.6 Pounds
- **Material:** Plastic
- **Product Benefits:** Reduces chlorine for softer skin and healthier hair
- **Product Dimensions:** 2.76"D x 6.3"W x 2.76"H

## Images

![Aquasana Shower Water Filter System Replacement Cartridge - Filters Over 90% of Chlorine - Carbon & KDF Filtration Media - Soften Skin and Hair from Hard Water - AQ-4125 - Image 1](https://m.media-amazon.com/images/I/51fmUByi0PL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Will it work with AQ-4100 model?**
A: Yes. According to the Aquasana website, the AQ-4125 works as a filter replacement for the following models: AQ-4100, AQ-4100NSH and AQ-4105. I've got the AQ-4100 as well, so this is the replacement I'm ordering. It's $52.50 through Aquasana's website.

**Q: How often is it recommended to change filters?**
A: I agree with 'Anonymous' (although the amt of people doesn't matter, it's just simply how many gallons flow through). It filters "10,000 gallons"   An average 10 min shower uses 20 gals.  Using this info it will last appr 500 showers. (adjust for your own personal usage).  I have been using this shower filter exclusively for 15 yrs;  I love it!!  Would highly recommend.

**Q: will this filter help with hard well water (no clorine)?**
A: Probably.  I know that it filters out quite a bit, because the water where I live has quite a bit of of hardness and minerals.  I get kidney stones from the shower water, and putting the filter on my shower has completely stopped my kidney stones.  I have a handyman change the filter one month sooner than is recommended, just to make sure that I never have a problem again since I had 3 visits to the emergency room with stones and urinary tract infections.  It was my handyman who recommended that I do this, tho my urologist thinks I am nuts.  Hey, the skin is your largest organ and it takes in many things from the environment just like it gives off by-products from your body.  Regardless, this filter works for me.  My answer would be "yes" in response to your question.

**Q: Is there a reason the replacement filter costs more than the shower head with filter? Doesn't make sense to buy just the replacement.**
A: probably because its much easier to replace just the filter vs. the entire showerhead but I'm not really sure

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, made in the USA, this is what you want for a better shower!
*by T***E on March 7, 2025*

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

### ⭐⭐⭐⭐⭐ Only buy the real Aquasana version. The generic ones only last 3 weeks before they get clogged.
*by D***Y on March 7, 2025*

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.

### ⭐⭐⭐⭐⭐ One of (my) life's little necessities
*by E***K on May 26, 2013*

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.

## Frequently Bought Together

- Aquasana Shower Water Filter System Replacement Cartridge - Filters Over 90% of Chlorine - Carbon & KDF Filtration Media - Soften Skin and Hair from Hard Water - AQ-4125
- Aquasana Replacement 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

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-01*