Premium
Shower Filter

The essential health and beauty product.

AQ-4125 shower water filter replacement

Just need a replacement? Click to jump to our shower replacement. Shop Now

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 1202.
  • y_2018, m_6, d_20, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_145, tr_1057
  • loc_en_US, sid_2, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_aquasanaserviceteam
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getAggregateRating, 80.19ms
  • REVIEWS, PRODUCT
$5499 SELECT SHOWER FILTERS until Jun 25
  • MSRP: 84.99
  • Sale: 54.99

Save 50% + free shipping with Water for Life $42.49

Questions? We can help

  • 866-662-6885
  • MON–FRI: 8AM–6PM CDT
  • 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

Product
Enhancing

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

How It Works

Premium
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 It’s great Love the filter so far! My skin feels less dry and my hair is adjusting better to my new shampoo routine!
Date published: 2018-05-28
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
  • y_2018, m_6, d_20, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_145, tr_1057
  • loc_en_US, sid_2, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_aquasanaserviceteam
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getReviews, 88.23ms
  • REVIEWS, PRODUCT

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

Can I use the shower wand to use on the filter?

Asked by: Marty1
Yes! We use both!  Really appreciate the aquasana  company and their outstanding customer service!
Answered by: brightshoe
Date published: 2018-06-18

What is the recurring fee for water for life?

Asked by: LaChandra
Water for Life is a contract-free, no obligation replacement cartridge auto-ship program. Sign up is free of charge and you can cancel at anytime. Water for Life ensures you get the best discounts on replacement cartridges, free shipping on Water for Life product purchases, and an extended warranty. Your only cost on the program will be for the filters themselves. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-06-15

Looking for a filter to remove sulfer odor . Do you make something for that ?

Asked by: Jazzman
Good Afternoon, We do not have any shower filters that are specifically designed for sulfur reduction. However, if you contact us at 866.662.6885 we can place an order for a well water shower filter which may help reduce the sulfur levels in your water. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-06-02

Hello, My husband and I live in a co-op building, Bronx, New York. We are aware that this area is high in sediment.  Will the Aquasana Shower Filter work? Thank you. If not, do you have any recommendations?

Asked by: Irma
Hello! The filter can certainly help reduce rust, sediment and silt in the water. However, it is not designed to be used as a water 'softener' and will not make your water softer or remove the mineral content from the water. It's main function will be chlorine reduction. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-06-02

Does this shower filter remove lead in the water

Asked by: Shec
Thank you for your interest in Aquasana! Due to the high flow rate of shower filtration systems and the minimal contact time with filtration media, this system is only certified for chlorine reduction. We do know that the media used can help reduce volatile organic chemicals, herbicides, pesticides and other chemical compounds, as well as lead and other heavy metals. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-05-15

Does it remove sulfur smells?

Asked by: AJG1
Our water in Stockton California does occasionally emit a sulfur odor from our Taps . The aquasana shower filter totally eliminates the sulfur odor as well as Chlorine or any other VOC`s that we have found from time to time. My wife Deborah and myself Highly recommend this filter for better health . We are living examples and will continue it`s use where ever we go. !!!!!!!
Answered by: KerDeb
Date published: 2018-05-12

We are on a well so cholorine is not a concern. How effective is this filter at removing other impurities? Particularly iron? 

Asked by: MAWitzman
Thank you for your interest in Aquasana! Due to the high flow rate of shower filtration systems and the minimal contact time with filtration media, this system is only certified for chlorine reduction. We do know that the media used can help reduce volatile organic chemicals, herbicides, pesticides and other chemical compounds, as well as lead and other heavy metals. If you are on well water, please contact us directly at 866.662.6885. We do have a specialty shower filter that is designed to better handle the heavy metals and other components typically found in ground water. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-05-11

After installing just the filter and replacing my own hand shower I notice the water current becomes weak very significantly. What should I do to improve the slow and weak water current?

Asked by: Melissa_ns
The optimum flow rate for the filter and shower head is 2.5 gallons per minute, and the system has an operating pressure range of 20-80 PSI. If you are experiencing slow flow, and you are certain that the filter was flushed properly and your shower head is not clogged with carbon, then you may want to check the flow rate of your shower head, and the PSI of your shower. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-05-11
  • y_2018, m_6, d_20, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_53
  • loc_en_US, sid_2, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_aquasanaserviceteam
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getContent, 83.69ms
  • QUESTIONS, PRODUCT