Shower Filter

The essential health and beauty product.

AQ-4125 shower water filter replacement

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Select a shower head option: with Shower Head
  • Shower filter with head
  • Shower filter without head
  • Shower filter with white wand
  • Shower filter with chrome wand
Shower Filter is rated 4.6 out of 5 by 1217.
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  • MSRP: 84.99

Save 20% + free shipping with Water for Life $67.99

Questions? We can help

  • 866-662-6885
  • SAT: 9AM–5PM CDT

Whole Health

Feel the Difference

Reduce your skin's exposure to harsh chlorine and synthetic chemicals that can cause skin damage and excessive drying.

Shower in Aquasana filtered water for noticeably softer, more moisturized skin.

Whole Health

Stronger, Healthier Hair

One of the most important things you can do for hair is to wash it with filtered, chlorine-free water. Your hair will be noticeably softer and shinier, your scalp will be healthier and your color will stay true and last longer.

— River Lloyd, celebrity stylist of the
John Frieda Salon in New York

Whole Health

Ultimate Versatility

Choose from our premium massaging shower head or premium massaging handheld wand for multiple massage settings to customize your shower experience.

The Aquasana Shower Filter also works with most 2.5 GPM shower heads so you can keep your own shower head.

Pure Performance

Patented copper/zinc media and coconut shell carbon

Natural coconut shell carbon filters out chlorine and other harsh chemicals, while copper/zinc media further reduces chlorine and enhances water pH balance.

The Aquasana shower filter improves air quality, enhances water pH and removes over 90% of chlorine for the healthiest shower experience.

Please see our Performance Data Sheet for complete test results.

Pure Performance

Easy Installation

Attaches easily to shower pipe.

Long lasting filters only need to be replaced twice a year.

Pure Performance

Superior Design

Aquasana's unique upflow design prevents media channeling and clogging, retains shower head height and water pressure, and increases water contact time with media for superior filtration and unmatched results.

Pure Performance


Naturally enhance your bath products and hair treatments. Use less shampoo, conditioner, soap and body lotions.

How It Works

Shower Filter

Removes over 90% of chlorine in shower water

  • 10,000 gallons
  • 6 month filter life
  • 1 year warranty
  • 90 day guarantee
See How It Works
certified by NSF

NSF Certified Media

Certified to Standards 42
and 61

AquaSorb™ HX coconut shell carbon reduces chlorine and synthetic chemicals

KDF 55 PROCESS MEDIA copper/zinc blend further reduces chlorine and enhances pH

Easy to install, replace and maintain

Help & Support

Video Help

  • How to install the shower water filter
  • How to replace the AQ-4105 shower filters

Installing the shower water filter

Replacing the filter in the AQ-4100

Learn More

Read the Reviews

Rated 5 out of 5 by from I love my new shower filter. I like how soft the water feels, and knowing the contaminants are removed is an added plus.
Date published: 2018-05-21
Rated 5 out of 5 by from Thankful I'm loving my new shower water filter. I haven't had anymore problems with dry skin since installing filter. Prior to filter installation I always had to lotion my legs and arms because they were so dry and cracked, not any more.
Date published: 2018-05-16
Rated 5 out of 5 by from Chorine removal We are most interested in chlorine removal. Organic chemical removal is just a plus ! These units work well for this. And while we have used this filter for a shower head and it installed and worked fine, our current use is under sink cold water supply. The water taste great, the flow is fine and as it supplies water to our ice maker, the ice tastes good too! —we also use a second unit to supply water to our RV. It works well here to as a small “whole house” water filter. Again noticeable chlorine is gone.
Date published: 2018-05-15
Rated 5 out of 5 by from Amazing shower filter does its job I have been using the Aquasana shower filters for over 4 years and I have been very happy. Easy to install, good quality and my skin feels great. I will continue to use Aquasana filters. Bonus, the last time I ordered, they gave me an extra one for free!
Date published: 2018-05-10
Rated 5 out of 5 by from I didn't know what I was missing Instillation was very easy and fast. Right away I could feel the difference of the water hitting my body. I also have peace of mind brushing and rinsing my teeth in the shower. It's an awesome addition to my home.
Date published: 2018-05-09
Rated 5 out of 5 by from Love the shower filter I've been using the shower filter for over 5 years. My skin and hair feel smoother and softer than not using the filter. Definitely recommend it.
Date published: 2018-05-02
Rated 5 out of 5 by from Great help for sensitive skin I have used aqua sans repeatedly for years on my shower head . I have eczema issues and live in a hard water area of town. I was unable to tolerate my shower and bath water until using aqua sauna products.
Date published: 2018-05-01
Rated 5 out of 5 by from So far, so good. Only have been using it a few times so far. You definitely need to follow installation directions because the connection is plastic and will most likely be connecting to a metal pipe, so you need some threading sealant from the hardware store. Water comes out with enough pressure.
Date published: 2018-04-30
Rated 5 out of 5 by from The chloramine problem It's great now that we learned to ask for the chloramine filter option. You need to find out what's in your tap water. It they add BOTH chlorine AND ammonia, that makes chloramine and it is harder to filter out than either would be alone. Look it up. I'm glad I did.
Date published: 2018-04-17
Rated 5 out of 5 by from Great Investment I happen to be on city water they put all kinds of chemicals in most city water, and my hair allways seems to feel like wire But Now since i installed the shower filter my hair is soft and easy to brush and has a shine to it again, this is one of the best investments you can do for the money it works GREAT !!
Date published: 2018-04-13
Rated 5 out of 5 by from Unit performs above expectations Unit was easy to install and produces great quality water.
Date published: 2018-04-10
Rated 5 out of 5 by from Love the pressure Love the pressure and it works great. Thrilled I made the purchase!
Date published: 2018-04-10
Rated 5 out of 5 by from Great difference inhow hair and skin feels! My husband and I love the filter! We noticed a difference in how our hair and skin felt immediately. Also, we have a lot of chlorine in our water; you could smell it! I have bad asthma, and noticed I can breathe easier in the steamy shower. The customer service is excellent. We wish we had goiter this a long time ago!
Date published: 2018-04-09
Rated 5 out of 5 by from Great filter I bought this 6 montjs sgo and then i ordered another one.. BUT i ordered the wrong number and i got the filter with the shower hesd.. So i took the filter and instaled it.. Now i ordered another filter to give the shower head and filter to a friend.. i hope they will like your product..
Date published: 2018-04-09
Rated 5 out of 5 by from Great filter I washed my hair a couple of times and it looked like hay. As soon as I washed it in the shower using your filter I saw immediate results. Our water has so much chlorine in it that you can smell it. I’ll never be without my Aquasana shower filter again!!
Date published: 2018-04-06
Rated 5 out of 5 by from Great purchaae I bought the aquasana filter and shower head because I was tired of my kids and I smelling the harsh chlorine every time we took a shower. Our skin was dry as well. Especially in the winter months. So pleased that i bought this filter. The price was reasonable, the installation was simple and the results are amazing.
Date published: 2018-04-04
Rated 5 out of 5 by from Clean shower water! The first time you use this shower filter your skin will feel much better because the film of residue from body washes and soap is completely rinsed off. I thought this residual film was just an oil or some ingredient that just remained but it's not so.
Date published: 2018-04-03
Rated 5 out of 5 by from Perfect everyone in Mexico needs this I am constantly traveling to Mexico and I've noticed a great difference on the water quality in Mexico and in the US. During my travels to Mexico my skin was exposed constantly to hard water chlorine and smelly water. My skin completion changed and my skin would dry up to the point it would bleed. I found this filter online and dude it changed my life. I bought it in March 2018 and it's the 1st week of April and I already feel the change. I love it. Do you guys have any products as simple as this one that I can use for the tap water in the kitchen and bathroom handsink?
Date published: 2018-04-03
Rated 5 out of 5 by from Great deal I have been using these shower filters for my shower over a year. I recommend replacing every 4 months. They work great. Thanks Aquasana
Date published: 2018-04-03
Rated 5 out of 5 by from Shower filter review My wife's hair stylist suggested it to help her hair color last longer. We no longer have the chlorine smell in the shower.
Date published: 2018-03-30
Rated 5 out of 5 by from very easy for me to install I have used this filter for several years and I would not be without it. I know the water here at the apartment is no good because of the city pipes that supplies the building. Comforting to know that I do not smell the chlorine and not getting it on my skin everyday. My research on the Internet has led me to continue to trust what I am getting from Aquasana. Thanks, Glenn
Date published: 2018-03-27
Rated 5 out of 5 by from Delighted I did this! I'm a very allergic person who had terribly dry skin and already the itching has abated. So pleased.
Date published: 2018-03-27
Rated 5 out of 5 by from A better shower experience Great filter for your shower. Gives a cleaner feel with no residue.
Date published: 2018-03-21
Rated 5 out of 5 by from Bye Bye Chlorine! I finally got rid of that terrible (and poisonous) smell and taste of chlorine! Now my shower's water is way more sweet and healthful. Just love it :)
Date published: 2018-03-20
Rated 5 out of 5 by from Awesome product My wife has MCS,(Multiple Chemical Sensitively) and our city had added chlorine which made it almost impossible for her to shower. This filter is easy to install and does a fantastic job getting chemicals out. Thank you
Date published: 2018-03-19
Rated 5 out of 5 by from Great features! I'm so pleased with this shower filter. Had it for 1 month and could see a difference right away. My hair is softer, shinier and most of all my hair colour is blonde and not brassy. The best thing I've done for my hair ever.
Date published: 2018-03-15
Rated 5 out of 5 by from Its wonderful! I bought two of the shower filters, one for each bathroom. I have sensitive skin, dry hair, and itchy skin from the water where I live. After I put both filters in my bathroom and took a shower in my bathroom I could tell the difference right away on my skin and hair! I am so glad I ordered them, which by the way was a buy one get one free during the president day sale in February! Awesome deal and price! P.s. I know brush my teeth in the shower because of the clean water!!
Date published: 2018-03-14
Rated 5 out of 5 by from Great product One shower is all it takes to see the difference! Our kids have really sensitive skin and the shower filter is really helping noticing less dry and itchy skin. From start to finish, the process of installing this shower filter was a breeze.
Date published: 2018-03-08
Rated 5 out of 5 by from Our new shower filter I am glad that the filter was a fairly quick installation. The fact that the chlorine is not in the shower water anymore is a relief to me. My skin does not feel as dry afterwards.
Date published: 2018-03-07
Rated 5 out of 5 by from easy to install The filter functions as described. Happy with it.
Date published: 2018-02-27
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Learn More

Aquasana FAQs

  1. Do I have to pay for a plumber to install the system?

    Aquasana shower systems are very easy to install, and you can do it yourself in minutes. No plumber is necessary. If you have any questions or need assistance, our technical support representatives at 866-662-6885 can walk you through the installation process.

  2. What is the flow rate of the AQ-4100, AQ-4100NSH, & AQ-4105?

    The optimum flow rate for the filter and shower head is 2.5 gallons per minute.

  3. Can I use my own shower head or hand-held wand with the AQ-4100?

    Yes, you can use your own shower head. The AQ-4100NSH is the correct model for individuals using their own shower head. Just remember the shower head needs to have the same 1/2 inch connection as standard shower heads and the ideal flow rate would be 2.5 gallons per minute. If your shower head processes more than a 2.5 gallon flow rate per minute, the quality of filtration may degrade slightly. Increasing the flow rate by changing the shower head reduces contact time with the media and will reduce the filtration quality. If you decrease the flow rate of the system by using a different shower head, or use a shower head with a shut-off switch, you may cause damage to the system and void your warranty.

  4. Can I use the shower system for drinking water?

    Drinking some of the water during your shower poses no health risk. However, Aquasana does not recommend that you use the shower system as a primary drinking water source since it is not designed as a drinking system and has only been tested under shower conditions and regulations.

  5. Can I hook the shower system up under a constant pressure application?

    No, the shower system is designed to allow the water to consistently pass through the system as it filters. If the system is under constant pressure and unable to release the pressure introduced into the system during filtration, damage can occur to the unit.

  6. How do I know if the Aquasana shower system will fit the shower pipe coming out of my wall?

    Most shower connections are 1/2 inch, which means that the Aquasana shower systems will fit the shower pipe in most homes.

  7. How much chlorine does the shower system remove?

    Aquasana shower systems are tested to remove 91% chlorine for 10,000 gallons.

  8. How do I know how many showers it takes to use 10,000 gallons?

    10,000 gallons at 2 1/2 gallons per minute = 4,000 minutes of showering
    - You can take 400 10-minute showers
    - You can take 267 15-minute showers

Learn More

User Q & A

How does this product affect the water pressure coming out of the shower head?

Asked by: Daughters_Apartment
If you have normal pressure, use any shower head you want with no real loss of pressure. If you have restricted flow already from old pipes or block or even low flow pipes, do not use low flow shower head. I have had 2 different homes using this filter and notice mo real dropoff in pressure.
Answered by: Mjones5970
Date published: 2019-07-14

Does this filter need a prop65 warning?

Asked by: Aisha
Hello, No, this item does not require a proposition 65 warning. If you have any further questions please contact us directly at 866-662-6885, Monday thru Friday from 8am-6pm CST, and weekends from 9am-5pm CST. - Aquasana Support
Answered by: Aquasana S
Date published: 2019-07-11

How often does one need to change the shower filter?

Asked by: Turk
every 6 months
Answered by: josephina
Date published: 2019-06-22

When i am ready to purchase a filter, am i better to purchase the replacement or the whole product? Price is about the same, which inludes the head.

Asked by: Annie filter
Using the auto ship where I get a new filter in the mail at the appropriate time works best for me. It’s one less thing to keep up with. I don’t see any reason to change the head. It still looks good. 
Answered by: June9
Date published: 2019-06-27

Does the shower filter remove manganese? Or help get rid of a sulphur smell in the water?

Asked by: whataboutbob
Hello, The shower system will not remove the sulfur from your water. Activated carbon filters can remove low levels of sulfur sediment, manganese, and iron. However, maintenance and replacement of filter systems are very high because sulfur, iron, manganese and other suspended materials in the water soon clog the filter. If you have any further questions please contact us at 866-662-6885. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-05-29

Does the shower filter remove or reduce PFAS?

Asked by: ErinA
Hello, Thank you for your question. All of our drinking systems remove PFOA/PFOS. The EPA lists carbon filtration as a filtration method for removing PFOS and PFOA, which all of our systems contain. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-05-29

What is water for life?

Asked by: DavidsQuestion
Water for Life sets you up to automatically receive shower refills every 6 months.
Answered by: seacoastnotary
Date published: 2019-04-09

I have well water with iron problems, will this help with this issue.

Asked by: papabm
Hello, It appears you have several questions that would best be answered by a consultation with one of our experts over the phone. Please call our sales department at 866-662-6885, options 1 and 1 to discuss a potential solution for your home. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-03-26
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