Premium
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 1113.
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$54.99 SELECT SHOWER FILTERS - limited time!
  • 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 4 out of 5 by from Chlorine reducer not eliminator! I was trying to eliminate chlorine from my shower and this filter does make a 75% reduction in chlorine measured with our laser photometer.
Date published: 2017-10-11
Rated 4 out of 5 by from Shower filter My wife says '' my hair is softer and my skin is not as dry''. Me apparently it seems to work well.
Date published: 2017-10-08
Rated 5 out of 5 by from Soft Water When I purchased this filter to rid the home water of toxins I never thought about it but the water is not only cleaner but it's soft and makes your body feel good. Thanks!
Date published: 2017-10-08
Rated 5 out of 5 by from Love it I used this filter in my previous apartment for over a year, and now in my new apartment. I obviously can't tell much difference physically, but mentally I have a lot of peace of mind. Easy to install!
Date published: 2017-10-05
Rated 5 out of 5 by from What a difference! Soft skin, smooth hair and a cleaner showe. I wish I had purchased the shiwer head months ago.
Date published: 2017-10-03
Rated 1 out of 5 by from Does not remove flouride Does not remove fluoride, which is a dangerous and poisonous chemical that can create a list of problems with your health.
Date published: 2017-10-02
Rated 5 out of 5 by from Amazing! Easy to install! No more chemical smells in my bath water, how amazing to take a bath in truly clean water. Especially amazing when bathing my baby boy to know his skin isn't soaking in chlorine and chemicals. Another pro for this water filter is for those of us gals who get our hair colored or highlited, this filters keeps all those bad chemicals from turning hair brassy!
Date published: 2017-10-01
Rated 5 out of 5 by from Hair saving device I recently moved to the Nashville area where the city water smells, actually felt the chemicals in the water drying out my skin and my hair was coming out in clumps and felt like sticky gum after washing and conditioning. I couldn't find ANYONE to install a water softener UNLESS I purchased their $4k unit!!! So after researching, I found an Aquasana Shower filter. After one week, my hair quit falling out, my skin isn't itching constantly from dryness and no odor. I am so happy with this shower filter. I will be buying a complete Aquasana saltless water softener system come spring.
Date published: 2017-09-27
Rated 5 out of 5 by from Good Purchase I bought this filter a month ago and enjoy not having chlorine to bathe in. My skin and hair feels soft and clean. Thanks
Date published: 2017-09-25
Rated 3 out of 5 by from flawed design filter seems good but output doesn't leave enough clearance if you own your own shower head w/hose. filter has to be tilted on an angle for the hose to hang properly
Date published: 2017-09-23
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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

In Amazon the price for this is ways higher than it is here. Could you guys take a look at it?

Asked by: Deepu
Thank you for your interest in Aquasana! Unfortunately we do not have direct control over the pricing of our products on Amazon. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

We have a shower head and a hand nozzle as well. Will this work? I want one without a shower head. 

Asked by: Amanda
Thank you for your question. You can certainly 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. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

hi i have well water and wondered how this works with well water/ i want a softening effect

Asked by: tammy
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. That being said, we are currently unable to provide an exact percentage of these reductions. We do have a shower filter cartridge specifically designed for well water which is available by request. It contains a media that is better suited to handle the hard minerals and heavy metals found in well water, but is not intended to soften you water. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

How many months does one filter last

Asked by: Tracy
Thank you for your question! Each filter cartridge is good for 6 months. Please let us know if you have any other questions or concerns and anyone on the team will be happy to assist. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

What is the rated flow rate through the filter assembly?

Asked by: rock11kjl
Thank you for your question! The optimum flow rate for the filter and shower head is 2.5 gallons per minute. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

Is the shower filter only designed for water supply in the US? Will it work as well with general water supply with no chlorine but other contaminants? 

Asked by: Fahad
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. That being said, we are currently unable to provide an exact percentage of these reductions. You can certainly use the filter with any water supply, however the effectiveness will certainly depend on what contaminants are in the water. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

How much fluoride is removed?

Asked by: Dawndidawn
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. That being said, we are currently unable to provide an exact percentage of these reductions. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11

Can you send me the MDS sheet for your shower filter or a spec sheet that tells me what your filter will filter out. We have n FPOA CONTAMINTION  issue in my time. I need a filter that will remove that if present in the water.

Asked by: Paradisem1
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. That being said, we are currently unable to provide an exact percentage of these reductions. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2017-10-11
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