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 White Wand
  • Shower filter with head
  • Shower filter without head
  • Shower filter with white wand
  • Shower filter with chrome wand
Shower Filter with Handheld Wand is rated 4.4 out of 5 by 990.
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  • MSRP: 99.99

Save 20% + free shipping with Water for Life $79.99

Questions? We can help

  • 866-662-6885
  • MON–FRI: 8AM–7PM 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 As advertised After a very simple installation the shower filter was purged and put to use. We were delighted with the great water pressure, no slack off there at all. My wife's first impression was how much better the water felt and smelled. She liked the shower filter and the wand is nice to use and nice to look at.I had to concur and now we are contemplating a whole house system. Nice product....as advertised
Date published: 2019-08-15
Rated 5 out of 5 by from Surprised! The installation was a breeze. No issues. Almost a month and I see a difference in my skin and hair! And theres no buildup on the wand or shower head so I know it's working!
Date published: 2019-04-28
Rated 5 out of 5 by from Shower review I could tell right away that the mineral scent in my clean hair was gone!!
Date published: 2019-03-05
Rated 5 out of 5 by from Excellent Purchase I am so happy with my shower water filter and handheld wand. It works terrific. Was easy for me to install and my hair and skin feel so much better. My hair had been getting darker with each wash as it is blonde. My hair now is not only softer but it is keeping its color very well. I am so happy that I got this product!!!
Date published: 2019-01-24
Rated 5 out of 5 by from Excellent Excellent water filter system. I enjoy the quality the water so pure thanks aquasana.
Date published: 2019-01-08
Rated 5 out of 5 by from aquasana shower i really recommend this shower aquasana to all my family, my skin it feel wonderful and also my hair
Date published: 2019-01-03
Rated 5 out of 5 by from City Shower Water caused stinging sensations Needed a filter to address this startling problem ASAP. Read up on filters and found that the best solution was a dual filter that contained a charcoal component. Aquasana had a sale at the time so I decided to try their shower filter and glad I did. Product has reduced the water irritation by at least 75% so now I can take a shower with much less suffering. What is going on in the City Water is very concerning so be mindful of what quality of water you are bathing with wherever you live.
Date published: 2019-01-03
Rated 5 out of 5 by from Excellent Service and Great products! I have been using Aquasana products for 5+ years from drinking water filter to shower heads and I love your products and will continue to use knowing that they are excellent products and give my whole family clean water to drink and use.
Date published: 2019-01-01
Rated 5 out of 5 by from IMPRESSED! We love our new shower filter! It's so easy to install. It makes our skin and dogs' coat softer.
Date published: 2018-12-30
Rated 5 out of 5 by from Easy installation nice product and affordable Nice product, good water pressure, water feels nice. Easy installation.
Date published: 2018-12-23
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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

Can these filters be installed in campers?

Asked by: CJ W
Well, i would check the circumference of the shower pipe of you camper, and check out the shower filter circumference to see if it is compatible..if so, I would say 'give it a go'...but if there is anyway to pull up the actual manual, or call customer service with your measurements and ask them...hope this helps...even a little...
Answered by: April Showers
Date published: 2019-08-13

Do your shower filters remove PFAS from the water? I see that chemicals and pesticides are listed, but does not list PFAS like your faucet systems do.

Asked by: SherW
Hello, Thank you for your question. No our shower system is not NSF certified to remove PFAS. PFAS PFOS AND PFAS, that you find in scotch guard or teflon in cookware. All of our drinking systems are NSF Certfiied for the removal of PFOS and PFAS. You can find it on the Performance Data Sheets. If you have any further questions please contact us at 866-662-6885. Thank you, -Aquasana Support
Answered by: Aquasana S
Date published: 2019-07-18

I have well water with lots of iron in it. Does this filter reduce minerals, does it remove iron from the water?

Asked by: the short one
Yes this filter works great with well water
Answered by: Silver foxx
Date published: 2019-07-15

How long is the chord on the detachable head? 

Asked by: Genna
Hello Genna, Thank you for your inquiry. The cord on the shower head is 3FT long. If you have any further questions please contact us at 866-662-6885. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-06-27

I’m interested in the shower head filter. My question is, how well I know when it is time to change the filter? We all use more or less in different house hold. ia there some kind of device to measure the water perhaps. If you can help me out it’ll be grt

Asked by: Gear
Gear, We recommend a replacement filter every 6-months. The shower system filters 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 If you would like to speak to a team member for more information, our team members are available at 866-662-6885, Monday thru Friday from 8am-6pm CST, and weekends from 9am-5pm CST. -Aquasana Customer Support
Answered by: -ACS
Date published: 2019-06-14

I live in Upstate NY - zip code 12025 - we have well water and live right on a lake. Is this a good option for our shower? How often does it need to be replaced? Thank you! 

Asked by: Amak95
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: 2019-06-05

Does the hand held shower spray lose its water pressure? I have the regular shower head right now and that has an ok pressure. Thank and have a great day.

Asked by: Tinamcl
Initially, that was my concern as well. But in the seven years we've been using Aquasana filters with handheld wands, we've never experienced a loss of water pressure on any of the massage settings. Hope this helps!
Answered by: Jayster
Date published: 2019-07-08

Does this shower head system help with Well Water?

Asked by: Curious thinker
Yes it does!  I wouldn’t hesitate to use these products for any of your water sources.
Answered by: Fritz49
Date published: 2019-05-21
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